How to use batchedUpdates method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactUpdates-test.js

Source:ReactUpdates-test.js Github

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...40 }41 });42 var instance = ReactTestUtils.renderIntoDocument(<Component /​>);43 expect(instance.state.x).toBe(0);44 ReactUpdates.batchedUpdates(function() {45 instance.setState({x: 1});46 instance.setState({x: 2});47 expect(instance.state.x).toBe(0);48 expect(updateCount).toBe(0);49 });50 expect(instance.state.x).toBe(2);51 expect(updateCount).toBe(1);52 });53 it('should batch state when updating two different state keys', function() {54 var updateCount = 0;55 var Component = React.createClass({56 getInitialState: function() {57 return {x: 0, y: 0};58 },59 componentDidUpdate: function() {60 updateCount++;61 },62 render: function() {63 return <div>({this.state.x}, {this.state.y})</​div>;64 }65 });66 var instance = ReactTestUtils.renderIntoDocument(<Component /​>);67 expect(instance.state.x).toBe(0);68 expect(instance.state.y).toBe(0);69 ReactUpdates.batchedUpdates(function() {70 instance.setState({x: 1});71 instance.setState({y: 2});72 expect(instance.state.x).toBe(0);73 expect(instance.state.y).toBe(0);74 expect(updateCount).toBe(0);75 });76 expect(instance.state.x).toBe(1);77 expect(instance.state.y).toBe(2);78 expect(updateCount).toBe(1);79 });80 it('should batch state and props together', function() {81 var updateCount = 0;82 var Component = React.createClass({83 getInitialState: function() {84 return {y: 0};85 },86 componentDidUpdate: function() {87 updateCount++;88 },89 render: function() {90 return <div>({this.props.x}, {this.state.y})</​div>;91 }92 });93 var instance = ReactTestUtils.renderIntoDocument(<Component x={0} /​>);94 expect(instance.props.x).toBe(0);95 expect(instance.state.y).toBe(0);96 ReactUpdates.batchedUpdates(function() {97 instance.setProps({x: 1});98 instance.setState({y: 2});99 expect(instance.props.x).toBe(0);100 expect(instance.state.y).toBe(0);101 expect(updateCount).toBe(0);102 });103 expect(instance.props.x).toBe(1);104 expect(instance.state.y).toBe(2);105 expect(updateCount).toBe(1);106 });107 it('should batch parent/​child state updates together', function() {108 var parentUpdateCount = 0;109 var Parent = React.createClass({110 getInitialState: function() {111 return {x: 0};112 },113 componentDidUpdate: function() {114 parentUpdateCount++;115 },116 render: function() {117 return <div><Child ref="child" x={this.state.x} /​></​div>;118 }119 });120 var childUpdateCount = 0;121 var Child = React.createClass({122 getInitialState: function() {123 return {y: 0};124 },125 componentDidUpdate: function() {126 childUpdateCount++;127 },128 render: function() {129 return <div>{this.props.x + this.state.y}</​div>;130 }131 });132 var instance = ReactTestUtils.renderIntoDocument(<Parent /​>);133 var child = instance.refs.child;134 expect(instance.state.x).toBe(0);135 expect(child.state.y).toBe(0);136 ReactUpdates.batchedUpdates(function() {137 instance.setState({x: 1});138 child.setState({y: 2});139 expect(instance.state.x).toBe(0);140 expect(child.state.y).toBe(0);141 expect(parentUpdateCount).toBe(0);142 expect(childUpdateCount).toBe(0);143 });144 expect(instance.state.x).toBe(1);145 expect(child.state.y).toBe(2);146 expect(parentUpdateCount).toBe(1);147 expect(childUpdateCount).toBe(1);148 });149 it('should batch child/​parent state updates together', function() {150 var parentUpdateCount = 0;151 var Parent = React.createClass({152 getInitialState: function() {153 return {x: 0};154 },155 componentDidUpdate: function() {156 parentUpdateCount++;157 },158 render: function() {159 return <div><Child ref="child" x={this.state.x} /​></​div>;160 }161 });162 var childUpdateCount = 0;163 var Child = React.createClass({164 getInitialState: function() {165 return {y: 0};166 },167 componentDidUpdate: function() {168 childUpdateCount++;169 },170 render: function() {171 return <div>{this.props.x + this.state.y}</​div>;172 }173 });174 var instance = ReactTestUtils.renderIntoDocument(<Parent /​>);175 var child = instance.refs.child;176 expect(instance.state.x).toBe(0);177 expect(child.state.y).toBe(0);178 ReactUpdates.batchedUpdates(function() {179 child.setState({y: 2});180 instance.setState({x: 1});181 expect(instance.state.x).toBe(0);182 expect(child.state.y).toBe(0);183 expect(parentUpdateCount).toBe(0);184 expect(childUpdateCount).toBe(0);185 });186 expect(instance.state.x).toBe(1);187 expect(child.state.y).toBe(2);188 expect(parentUpdateCount).toBe(1);189 /​/​ Batching reduces the number of updates here to 1.190 expect(childUpdateCount).toBe(1);191 });192 it('should support chained state updates', function() {193 var updateCount = 0;194 var Component = React.createClass({195 getInitialState: function() {196 return {x: 0};197 },198 componentDidUpdate: function() {199 updateCount++;200 },201 render: function() {202 return <div>{this.state.x}</​div>;203 }204 });205 var instance = ReactTestUtils.renderIntoDocument(<Component /​>);206 expect(instance.state.x).toBe(0);207 var innerCallbackRun = false;208 ReactUpdates.batchedUpdates(function() {209 instance.setState({x: 1}, function() {210 instance.setState({x: 2}, function() {211 expect(this).toBe(instance);212 innerCallbackRun = true;213 expect(instance.state.x).toBe(2);214 expect(updateCount).toBe(2);215 });216 expect(instance.state.x).toBe(1);217 expect(updateCount).toBe(1);218 });219 expect(instance.state.x).toBe(0);220 expect(updateCount).toBe(0);221 });222 expect(innerCallbackRun).toBeTruthy();223 expect(instance.state.x).toBe(2);224 expect(updateCount).toBe(2);225 });226 it('should batch forceUpdate together', function() {227 var shouldUpdateCount = 0;228 var updateCount = 0;229 var Component = React.createClass({230 getInitialState: function() {231 return {x: 0};232 },233 shouldComponentUpdate: function() {234 shouldUpdateCount++;235 },236 componentDidUpdate: function() {237 updateCount++;238 },239 render: function() {240 return <div>{this.state.x}</​div>;241 }242 });243 var instance = ReactTestUtils.renderIntoDocument(<Component /​>);244 expect(instance.state.x).toBe(0);245 var callbacksRun = 0;246 ReactUpdates.batchedUpdates(function() {247 instance.setState({x: 1}, function() {248 callbacksRun++;249 });250 instance.forceUpdate(function() {251 callbacksRun++;252 });253 expect(instance.state.x).toBe(0);254 expect(updateCount).toBe(0);255 });256 expect(callbacksRun).toBe(2);257 /​/​ shouldComponentUpdate shouldn't be called since we're forcing258 expect(shouldUpdateCount).toBe(0);259 expect(instance.state.x).toBe(1);260 expect(updateCount).toBe(1);261 });262 it('should update children even if parent blocks updates', function() {263 var parentRenderCount = 0;264 var childRenderCount = 0;265 var Parent = React.createClass({266 shouldComponentUpdate: function() {267 return false;268 },269 render: function() {270 parentRenderCount++;271 return <Child ref="child" /​>;272 }273 });274 var Child = React.createClass({275 render: function() {276 childRenderCount++;277 return <div /​>;278 }279 });280 expect(parentRenderCount).toBe(0);281 expect(childRenderCount).toBe(0);282 var instance = <Parent /​>;283 ReactTestUtils.renderIntoDocument(instance);284 expect(parentRenderCount).toBe(1);285 expect(childRenderCount).toBe(1);286 ReactUpdates.batchedUpdates(function() {287 instance.setState({x: 1});288 });289 expect(parentRenderCount).toBe(1);290 expect(childRenderCount).toBe(1);291 ReactUpdates.batchedUpdates(function() {292 instance.refs.child.setState({x: 1});293 });294 expect(parentRenderCount).toBe(1);295 expect(childRenderCount).toBe(2);296 });297 it('should flow updates correctly', function() {298 var willUpdates = [];299 var didUpdates = [];300 var UpdateLoggingMixin = {301 componentWillUpdate: function() {302 willUpdates.push(this.constructor.displayName);303 },304 componentDidUpdate: function() {305 didUpdates.push(this.constructor.displayName);306 }307 };308 var Box = React.createClass({309 mixins: [UpdateLoggingMixin],310 render: function() {311 return <div ref="boxDiv">{this.props.children}</​div>;312 }313 });314 var Child = React.createClass({315 mixins: [UpdateLoggingMixin],316 render: function() {317 return <span ref="span">child</​span>;318 }319 });320 var Switcher = React.createClass({321 mixins: [UpdateLoggingMixin],322 getInitialState: function() {323 return {tabKey: 'hello'};324 },325 render: function() {326 var child = this.props.children;327 return (328 <Box ref="box">329 <div330 ref="switcherDiv"331 style={{332 display: this.state.tabKey === child.key ? '' : 'none'333 }}>334 {child}335 </​div>336 </​Box>337 );338 }339 });340 var App = React.createClass({341 mixins: [UpdateLoggingMixin],342 render: function() {343 return (344 <Switcher ref="switcher">345 <Child key="hello" ref="child" /​>346 </​Switcher>347 );348 }349 });350 var root = <App /​>;351 ReactTestUtils.renderIntoDocument(root);352 function expectUpdates(sequence) {353 /​/​ didUpdate() occurs in reverse order354 didUpdates.reverse();355 expect(willUpdates).toEqual(didUpdates);356 expect(willUpdates).toEqual(sequence);357 willUpdates.length = 0;358 didUpdates.length = 0;359 }360 function triggerUpdate(c) {361 c.setState({x: 1});362 }363 function testUpdates(components, expectation) {364 var i;365 ReactUpdates.batchedUpdates(function() {366 for (i = 0; i < components.length; i++) {367 triggerUpdate(components[i]);368 }369 });370 expectUpdates(expectation);371 /​/​ Try them in reverse order372 ReactUpdates.batchedUpdates(function() {373 for (i = components.length - 1; i >= 0; i--) {374 triggerUpdate(components[i]);375 }376 });377 expectUpdates(expectation);378 }379 testUpdates(380 [root.refs.switcher.refs.box, root.refs.switcher],381 ['Switcher', 'Box', 'Child']382 );383 testUpdates(384 [root.refs.child, root.refs.switcher.refs.box],385 ['Box', 'Child']386 );...

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index.js

Source:index.js Github

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...43 console.log(res);;44 }).then(() => {45 /​/​ fetch不属于React管辖范围内，本来此时setState是同步更新，但是因为setState被batchedUpdates包裹，强行将同步改为异步，所以此时异步更新46 console.log('fetch的batchedUpdates的setState最前', this.state.number);47 batchedUpdates(() => {48 console.log('fetch的batchedUpdates的setState前', this.state.number);49 this.setState({ number: this.state.number + 1 });50 console.log('fetch的batchedUpdates的setState后', this.state.number);51 })52 console.log('fetch的batchedUpdates的setState最后', this.state.number);53 console.log('fetch的batchedUpdates的setState最前', this.state.number);54 batchedUpdates(() => {55 console.log('fetch的batchedUpdates的setState前', this.state.number);56 this.setState({ number: this.state.number + 1 });57 console.log('fetch的batchedUpdates的setState后', this.state.number);58 })59 console.log('fetch的batchedUpdates的setState最后', this.state.number);60 })61 console.log('componentDidMount的setState前', this.state.number);62 this.setState({ number: this.state.number + 1 });63 console.log('componentDidMount的setState后', this.state.number);64 }65 handleDefine = () => {66 console.log("🚀handleDefine 1", this.state.number)67 this.setState({ number: this.state.number + 1 })68 console.log("🚀handleDefine 2", this.state.number)69 setTimeout(() => {70 console.log('setTimeout的batchedUpdates的setState最前', this.state.number);71 batchedUpdates(() => {72 console.log('setTimeout的batchedUpdates的setState前', this.state.number);73 this.setState({ number: this.state.number + 1 });74 console.log('setTimeout的batchedUpdates的setState后', this.state.number);75 })76 console.log('setTimeout的batchedUpdates的setState最后', this.state.number);77 }, 500);78 setTimeout(() => {79 console.log("🚀setTimeout 1", this.state.number)80 this.setState({ number: this.state.number + 1 })81 console.log("🚀setTimeout 2", this.state.number)82 }, 1000);83 console.log("🚀handleDefine 1", this.state.number)84 this.setState({ number: this.state.number + 1 })85 console.log("🚀handleDefine 2", this.state.number)86 setTimeout(() => {87 console.log('setTimeout的batchedUpdates的setState最前', this.state.number);88 batchedUpdates(() => {89 console.log('setTimeout的batchedUpdates的setState前', this.state.number);90 this.setState({ number: this.state.number + 1 });91 console.log('setTimeout的batchedUpdates的setState后', this.state.number);92 })93 console.log('setTimeout的batchedUpdates的setState最后', this.state.number);94 }, 3000);95 }96 render() {97 return (98 <div>99 <p>{this.state.number}</​p>100 <button onClick={this.handleDefine}>验证</​button>101 </​div>102 )...

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6763f3ReactUpdates.js

Source:6763f3ReactUpdates.js Github

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...66scope,67a);68}});69PooledClass.addPoolingTo(ReactUpdatesFlushTransaction);70function batchedUpdates(callback,a,b,c,d,e){71ensureInjected();72return batchingStrategy.batchedUpdates(callback,a,b,c,d,e);73}74function mountOrderComparator(c1,c2){75return c1._mountOrder-c2._mountOrder;76}77function runBatchedUpdates(transaction){78var len=transaction.dirtyComponentsLength;79invariant(80len===dirtyComponents.length,81'Expected flush transaction\'s stored dirty-components length (%s) to '+82'match dirty-components array length (%s).',83len,84dirtyComponents.length);85dirtyComponents.sort(mountOrderComparator);86updateBatchNumber++;87for(var i=0;i<len;i++){88var component=dirtyComponents[i];89var callbacks=component._pendingCallbacks;90component._pendingCallbacks=null;91var markerName;92if(ReactFeatureFlags.logTopLevelRenders){93var namedComponent=component;94if(component._currentElement.type.isReactTopLevelWrapper){95namedComponent=component._renderedComponent;96}97markerName='React update: '+namedComponent.getName();98console.time(markerName);99}100ReactReconciler.performUpdateIfNecessary(101component,102transaction.reconcileTransaction,103updateBatchNumber);104if(markerName){105console.timeEnd(markerName);106}107if(callbacks){108for(var j=0;j<callbacks.length;j++){109transaction.callbackQueue.enqueue(110callbacks[j],111component.getPublicInstance());112}113}114}115}116var flushBatchedUpdates=function flushBatchedUpdates(){117while(dirtyComponents.length||asapEnqueued){118if(dirtyComponents.length){119var transaction=ReactUpdatesFlushTransaction.getPooled();120transaction.perform(runBatchedUpdates,null,transaction);121ReactUpdatesFlushTransaction.release(transaction);122}123if(asapEnqueued){124asapEnqueued=false;125var queue=asapCallbackQueue;126asapCallbackQueue=CallbackQueue.getPooled();127queue.notifyAll();128CallbackQueue.release(queue);129}130}131};132function enqueueUpdate(component){133ensureInjected();134if(!batchingStrategy.isBatchingUpdates){135batchingStrategy.batchedUpdates(enqueueUpdate,component);136return;137}138dirtyComponents.push(component);139if(component._updateBatchNumber==null){140component._updateBatchNumber=updateBatchNumber+1;141}142}143function asap(callback,context){144invariant(145batchingStrategy.isBatchingUpdates,146'ReactUpdates.asap: Can\'t enqueue an asap callback in a context where'+147'updates are not being batched.');148asapCallbackQueue.enqueue(callback,context);149asapEnqueued=true;150}151var ReactUpdatesInjection={152injectReconcileTransaction:function injectReconcileTransaction(ReconcileTransaction){153invariant(154ReconcileTransaction,155'ReactUpdates: must provide a reconcile transaction class');156ReactUpdates.ReactReconcileTransaction=ReconcileTransaction;157},158injectBatchingStrategy:function injectBatchingStrategy(_batchingStrategy){159invariant(160_batchingStrategy,161'ReactUpdates: must provide a batching strategy');162invariant(163typeof _batchingStrategy.batchedUpdates==='function',164'ReactUpdates: must provide a batchedUpdates() function');165invariant(166typeof _batchingStrategy.isBatchingUpdates==='boolean',167'ReactUpdates: must provide an isBatchingUpdates boolean attribute');168batchingStrategy=_batchingStrategy;169},170getBatchingStrategy:function getBatchingStrategy(){171return batchingStrategy;172}};173var ReactUpdates={174ReactReconcileTransaction:null,175batchedUpdates:batchedUpdates,176enqueueUpdate:enqueueUpdate,177flushBatchedUpdates:flushBatchedUpdates,178injection:ReactUpdatesInjection,...

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b173d786fb2390743a1da26410c872f6606b94ReactUpdates.js

Source:b173d786fb2390743a1da26410c872f6606b94ReactUpdates.js Github

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...42 return Transaction.perform.call(this, this.reconcileTransaction.perform, this.reconcileTransaction, method, scope, a);43 }44});45PooledClass.addPoolingTo(ReactUpdatesFlushTransaction);46function batchedUpdates(callback, a, b, c, d, e) {47 ensureInjected();48 return batchingStrategy.batchedUpdates(callback, a, b, c, d, e);49}50function mountOrderComparator(c1, c2) {51 return c1._mountOrder - c2._mountOrder;52}53function runBatchedUpdates(transaction) {54 var len = transaction.dirtyComponentsLength;55 invariant(len === dirtyComponents.length, "Expected flush transaction's stored dirty-components length (%s) to " + 'match dirty-components array length (%s).', len, dirtyComponents.length);56 dirtyComponents.sort(mountOrderComparator);57 updateBatchNumber++;58 for (var i = 0; i < len; i++) {59 var component = dirtyComponents[i];60 var markerName;61 if (ReactFeatureFlags.logTopLevelRenders) {62 var namedComponent = component;63 if (component._currentElement.type.isReactTopLevelWrapper) {64 namedComponent = component._renderedComponent;65 }66 markerName = 'React update: ' + namedComponent.getName();67 console.time(markerName);68 }69 ReactReconciler.performUpdateIfNecessary(component, transaction.reconcileTransaction, updateBatchNumber);70 if (markerName) {71 console.timeEnd(markerName);72 }73 }74}75var flushBatchedUpdates = function flushBatchedUpdates() {76 while (dirtyComponents.length) {77 var transaction = ReactUpdatesFlushTransaction.getPooled();78 transaction.perform(runBatchedUpdates, null, transaction);79 ReactUpdatesFlushTransaction.release(transaction);80 }81};82function enqueueUpdate(component) {83 ensureInjected();84 if (!batchingStrategy.isBatchingUpdates) {85 batchingStrategy.batchedUpdates(enqueueUpdate, component);86 return;87 }88 dirtyComponents.push(component);89 if (component._updateBatchNumber == null) {90 component._updateBatchNumber = updateBatchNumber + 1;91 }92}93var ReactUpdatesInjection = {94 injectReconcileTransaction: function injectReconcileTransaction(ReconcileTransaction) {95 invariant(ReconcileTransaction, 'ReactUpdates: must provide a reconcile transaction class');96 ReactUpdates.ReactReconcileTransaction = ReconcileTransaction;97 },98 injectBatchingStrategy: function injectBatchingStrategy(_batchingStrategy) {99 invariant(_batchingStrategy, 'ReactUpdates: must provide a batching strategy');100 invariant(typeof _batchingStrategy.batchedUpdates === 'function', 'ReactUpdates: must provide a batchedUpdates() function');101 invariant(typeof _batchingStrategy.isBatchingUpdates === 'boolean', 'ReactUpdates: must provide an isBatchingUpdates boolean attribute');102 batchingStrategy = _batchingStrategy;103 },104 getBatchingStrategy: function getBatchingStrategy() {105 return batchingStrategy;106 }107};108var ReactUpdates = {109 ReactReconcileTransaction: null,110 batchedUpdates: batchedUpdates,111 enqueueUpdate: enqueueUpdate,112 flushBatchedUpdates: flushBatchedUpdates,113 injection: ReactUpdatesInjection114};...

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ReactUpdates.js

Source:ReactUpdates.js Github

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...21var batchingStrategy = null;22function ensureBatchingStrategy() {23 invariant(batchingStrategy, 'ReactUpdates: must inject a batching strategy');24}25function batchedUpdates(callback, param) {26 ensureBatchingStrategy();27 batchingStrategy.batchedUpdates(callback, param);28}29/​**30 * Array comparator for ReactComponents by owner depth31 *32 * @param {ReactComponent} c1 first component you're comparing33 * @param {ReactComponent} c2 second component you're comparing34 * @return {number} Return value usable by Array.prototype.sort().35 */​36function mountDepthComparator(c1, c2) {37 return c1._mountDepth - c2._mountDepth;38}39function runBatchedUpdates() {40 /​/​ Since reconciling a component higher in the owner hierarchy usually (not41 /​/​ always -- see shouldComponentUpdate()) will reconcile children, reconcile42 /​/​ them before their children by sorting the array.43 dirtyComponents.sort(mountDepthComparator);44 for (var i = 0; i < dirtyComponents.length; i++) {45 /​/​ If a component is unmounted before pending changes apply, ignore them46 /​/​ TODO: Queue unmounts in the same list to avoid this happening at all47 var component = dirtyComponents[i];48 if (component.isMounted()) {49 /​/​ If performUpdateIfNecessary happens to enqueue any new updates, we50 /​/​ shouldn't execute the callbacks until the next render happens, so51 /​/​ stash the callbacks first52 var callbacks = component._pendingCallbacks;53 component._pendingCallbacks = null;54 component.performUpdateIfNecessary();55 if (callbacks) {56 for (var j = 0; j < callbacks.length; j++) {57 callbacks[j].call(component);58 }59 }60 }61 }62}63function clearDirtyComponents() {64 dirtyComponents.length = 0;65}66function flushBatchedUpdates() {67 /​/​ Run these in separate functions so the JIT can optimize68 try {69 runBatchedUpdates();70 } catch (e) {71 /​/​ IE 8 requires catch to use finally.72 throw e;73 } finally {74 clearDirtyComponents();75 }76}77/​**78 * Mark a component as needing a rerender, adding an optional callback to a79 * list of functions which will be executed once the rerender occurs.80 */​81function enqueueUpdate(component, callback) {82 invariant(83 !callback || typeof callback === "function",84 'enqueueUpdate(...): You called `setProps`, `replaceProps`, ' +85 '`setState`, `replaceState`, or `forceUpdate` with a callback that ' +86 'isn\'t callable.'87 );88 ensureBatchingStrategy();89 if (!batchingStrategy.isBatchingUpdates) {90 component.performUpdateIfNecessary();91 callback && callback();92 return;93 }94 dirtyComponents.push(component);95 if (callback) {96 if (component._pendingCallbacks) {97 component._pendingCallbacks.push(callback);98 } else {99 component._pendingCallbacks = [callback];100 }101 }102}103var ReactUpdatesInjection = {104 injectBatchingStrategy: function(_batchingStrategy) {105 invariant(106 _batchingStrategy,107 'ReactUpdates: must provide a batching strategy'108 );109 invariant(110 typeof _batchingStrategy.batchedUpdates === 'function',111 'ReactUpdates: must provide a batchedUpdates() function'112 );113 invariant(114 typeof _batchingStrategy.isBatchingUpdates === 'boolean',115 'ReactUpdates: must provide an isBatchingUpdates boolean attribute'116 );117 batchingStrategy = _batchingStrategy;118 }119};120var ReactUpdates = {121 batchedUpdates: batchedUpdates,122 enqueueUpdate: enqueueUpdate,123 flushBatchedUpdates: flushBatchedUpdates,124 injection: ReactUpdatesInjection125};...

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field.js

Source:field.js Github

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1'use strict';2var EventEmitter = require('event-emitter');3var raf = require('raf');4module.exports = Field;5function Field (name, initialValue, parentField, config) {6 if (/​\./​.test(name)) {7 throw new Error('Field names may not contain a period');8 }9 config = config || {};10 var value = initialValue;11 this.parent = parentField || null;12 this.events = new EventEmitter();13 this.type = null;14 this.name = name;15 16 this.batchedUpdates = {};17 this.batchUpdatePaths = [];18 this.batchUpdateRaf = null;19 Object.defineProperties(this, {20 '$field': {21 enumerable: false,22 value: this23 },24 '$config': {25 enumerable: false,26 value: config27 },28 'value': {29 get: function () {30 return value;31 },32 set: function (newValue) {33 var event = {34 field: this,35 name: this.name,36 path: this.path,37 fullpath: this.path,38 oldValue: value,39 value: newValue40 };41 var path = [];42 var field = this;43 do {44 event.path = path.join('.');45 var changes = {};46 changes[event.path || this.name] = Object.assign({}, event);47 if (field.events.emit) {48 field.events.emit('beforeChange', Object.assign({}, event));49 field.events.emit('beforeChanges', changes);50 }51 if (field._batchEmit) {52 field._batchEmit(event.path, Object.assign({}, event));53 }54 path.unshift(field.name);55 } while ((field = field.parent));56 value = newValue;57 }58 },59 'path': {60 enumerable: true,61 get: function () {62 var parentPath = (this.parent || {}).path;63 if (!this.name) return null;64 return (parentPath ? parentPath + '.' : '') + this.name;65 }66 },67 });68}69Field.prototype = {70 onBeforeChange: function (callback) {71 this.events.on('beforeChange', callback);72 return this;73 },74 offBeforeChange: function (callback) {75 this.events.off('beforeChange', callback);76 return this;77 },78 onBeforeChanges: function (callback) {79 this.events.on('beforeChanges', callback);80 return this;81 },82 offBeforeChanges: function (callback) {83 this.events.off('beforeChanges', callback);84 return this;85 },86 onChange: function (callback) {87 this.events.on('change', callback);88 return this;89 },90 offChange: function (callback) {91 this.events.off('change', callback);92 return this;93 },94 onChanges: function (callback) {95 this.events.on('changes', callback);96 return this;97 },98 offChanges: function (callback) {99 this.events.off('changes', callback);100 return this;101 },102 _emitUpdate: function () {103 this.events.emit('changes', Object.assign({}, this.batchedUpdates));104 while (this.batchUpdatePaths.length) {105 var updateKeys = Object.keys(this.batchedUpdates);106 for (var i = 0; i < updateKeys.length; i++) {107 var event = this.batchedUpdates[updateKeys[i]];108 var path = this.batchUpdatePaths.pop();109 this.events.emit('change', event);110 this.events.emit('change:' + path, event);111 }112 }113 this.batchedUpdates = {};114 this.batchUpdateRaf = null;115 },116 _batchEmit: function (path, event) {117 var existingUpdate = this.batchedUpdates[event.path];118 if (existingUpdate) {119 event.oldValue = existingUpdate.oldValue;120 }121 this.batchUpdatePaths.push(path);122 this.batchedUpdates[path] = event;123 if (!this.batchUpdateRaf) {124 this.batchUpdateRaf = raf(this._emitUpdate.bind(this));125 }126 }...

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ReactGenericBatching.js

Source:ReactGenericBatching.js Github

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...26 /​/​ If we have Fiber loaded, we need to wrap this in a batching call so that27 /​/​ Fiber can apply its default priority for this call.28 return fiberBatchedUpdates(fn, bookkeeping);29}30function batchedUpdates(fn, bookkeeping) {31 /​/​ We first perform work with the stack batching strategy, by passing our32 /​/​ indirection to it.33 return stackBatchedUpdates(performFiberBatchedUpdates, fn, bookkeeping);34}35var isNestingBatched = false;36function batchedUpdatesWithControlledComponents(fn, bookkeeping) {37 if (isNestingBatched) {38 /​/​ If we are currently inside another batch, we need to wait until it39 /​/​ fully completes before restoring state. Therefore, we add the target to40 /​/​ a queue of work.41 return batchedUpdates(fn, bookkeeping);42 }43 isNestingBatched = true;44 try {45 return batchedUpdates(fn, bookkeeping);46 } finally {47 /​/​ Here we wait until all updates have propagated, which is important48 /​/​ when using controlled components within layers:49 /​/​ https:/​/​github.com/​facebook/​react/​issues/​169850 /​/​ Then we restore state of any controlled component.51 isNestingBatched = false;52 ReactControlledComponent.restoreStateIfNeeded();53 }54}55var ReactGenericBatchingInjection = {56 injectStackBatchedUpdates: function(_batchedUpdates) {57 stackBatchedUpdates = _batchedUpdates;58 },59 injectFiberBatchedUpdates: function(_batchedUpdates) {...

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remote_fieldset.js

Source:remote_fieldset.js Github

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1(function(Monarch) {2_.constructor("Monarch.Model.RemoteFieldset", Monarch.Model.Fieldset, {3 initialize: function(record) {4 this.record = record;5 this.local = null;6 this.initializeFields();7 this.batchUpdateInProgress = false;8 },9 update: function(fieldValues, version) {10 this.batchedUpdates = {};11 _.each(fieldValues, function(fieldValue, columnName) {12 var field = this.field(columnName);13 if (field) field.value(fieldValue, version);14 }, this);15 if (version && this.record.remoteVersion < version) this.record.remoteVersion = version;16 var changeset = this.batchedUpdates;17 this.batchedUpdates = null;18 if (this.updateEventsEnabled && !_.isEmpty(changeset)) {19 if (this.record.onUpdateNode) this.record.onUpdateNode.publish(changeset);20 this.record.table.tupleUpdatedRemotely(this.record, changeset);21 }22 return changeset;23 },24 fieldUpdated: function(field, newValue, oldValue) {25 var changeData = {};26 changeData[field.column.name] = {27 column: field.column,28 oldValue: oldValue,29 newValue: newValue30 };31 if (this.batchedUpdates) _.extend(this.batchedUpdates, changeData);32 },33 /​/​ private34 createNewField: function(column) {35 return new Monarch.Model.RemoteField(this, column);36 }37});...

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.evaluate(() => {7 const { batchedUpdates } = require('playwright/​lib/​internal/​exports');8 batchedUpdates(() => {9 console.log('Batched Updates');10 });11 });12 await page.screenshot({ path: 'example.png' });

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { batchedUpdates } = require('playwright/​lib/​server/​frames');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await batchedUpdates(page, async () => {8 await page.click('text="Get started"');9 await page.click('text="Install"');10 await page.click('text="API"');11 });12 await browser.close();13})();14const { chromium } = require('playwright');15const { batchedUpdates } = require('playwright/​lib/​server/​frames');16(async () => {17 const browser = await chromium.launch();18 const context = await browser.newContext();19 const page = await context.newPage();20 await batchedUpdates(page, async () => {21 await page.click('text="Get started"');22 await page.click('text="Install"');23 await page.click('text="API"');24 });25 await browser.close();26})();27const { chromium } = require('playwright');28const { batchedUpdates } = require('playwright/​lib/​server/​frames');29(async () => {30 const browser = await chromium.launch();31 const context = await browser.newContext();32 const page = await context.newPage();33 await batchedUpdates(page, async () => {34 await page.click('text="Get started"');35 await page.click('text="Install"');36 await page.click('text="API"');37 });38 await browser.close();39})();40const { chromium } = require('playwright');41const { batchedUpdates } = require('playwright/​lib/​server

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.batchedUpdates(async () => {7 await page.click('text=Get started');8 await page.click('text=Docs');9 await page.click('text=API');10 });11 await page.screenshot({ path: `example.png` });12 await browser.close();13})();14import { chromium } from 'playwright';15(async () => {16 const browser = await chromium.launch();17 const context = await browser.newContext();18 const page = await context.newPage();19 await page.batchedUpdates(async () => {20 await page.click('text=Get started');21 await page.click('text=Docs');22 await page.click('text=API');23 });24 await page.screenshot({ path: `example.png` });25 await browser.close();26})();27from playwright.sync_api import sync_playwright28with sync_playwright() as p:29 browser = p.chromium.launch()30 page = browser.new_page()31 with page.batched_updates():32 page.click("text=Get started")33 page.click("text=Docs")34 page.click("text=API")35 page.screenshot(path=f"example.png")36 browser.close()37import com.microsoft.playwright.*;38public class Example {39 public static void main(String[] args) {40 try (Playwright playwright = Playwright.create()) {41 Browser browser = playwright.chromium().launch();42 BrowserContext context = browser.newContext();43 Page page = context.newPage();

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Using AI Code Generation

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1(async () => {2 const { chromium } = require('playwright');3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.evaluate(() => {7 window.batchedUpdates(() => {8 console.log('batchedUpdates');9 });10 });11 await browser.close();12})();13I am using the latest version of playwright(1.12.3), so I am not sure why this is not working. Can anyone help me with this?14const page = await browser.newPage();15const newPage = await page.context().newPage();16Error: Protocol error (Page.navigate): Cannot navigate to invalid URL17const page = await browser.newPage();18const newPage = await page.context().newPage();19Error: Protocol error (Page.navigate): Cannot navigate to invalid URL20const page = await browser.newPage();21const newPage = await page.context().newPage();22Error: Protocol error (Page.navigate): Cannot navigate to invalid URL23const page = await browser.newPage();24const newPage = await page.context().newPage();25Error: Protocol error (Page.navigate): Cannot navigate to invalid URL26const page = await browser.newPage();

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Using AI Code Generation

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1const playwright = require('playwright');2const { batchedUpdates } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement');3const fs = require('fs');4(async () => {5 const browser = await playwright.chromium.launch({ headless: false });6 const context = await browser.newContext();7 const page = await context.newPage();8 const recorderSupplement = page._delegate._recorderSupplement;9 await batchedUpdates(recorderSupplement, async () => {10 await page.click('text=About');11 await page.click('text=How Search works');12 });13 await page.screenshot({ path: `test.png` });14 await browser.close();15})();16 at CDPSession.send (/​home/​abhishek/​Projects/​playwright/​node_modules/​playwright/​lib/​cjs/​pw2/​protocol/​cdpSession.js:38:19)17 at async CDPSession.sendAndIgnoreError (/​home/​abhishek/​Projects/​playwright/​node_modules/​playwright/​lib/​cjs/​pw2/​protocol/​cdpSession.js:41:16)18 at async CDPSession.sendAndIgnoreError (/​home/​abhishek/​Projects/​playwright/​node_modules/​playwright/​lib/​cjs/​pw2/​protocol/​cdpSession.js:44:21)19 at async CDPSession.sendAndIgnoreError (/​home/​abhishek/​Projects/​playwright/​node_modules/​playwright/​lib/​cjs/​pw2/​protocol/​cdpSession.js:44:21)20 at async CDPSession.sendAndIgnoreError (/​home/​abhishek/​Projects/​playwright/​node_modules/​playwright/​lib/​cjs/​pw2/​protocol/​cdpSession.js:44:21)21 at async CDPSession.sendAndIgnoreError (/​home/​abhishek/​Projects/​playwright/​node_modules/​playwright/​lib/​cjs/​pw2/​protocol/​cdpSession.js:44:21)22 at async CDPSession.sendAndIgnoreError (/​home/​abhishek/​Projects/​playwright/​node_modules/​playwright/​lib/​cjs/​pw2/​protocol/​cdpSession.js:44:21)23 at async CDPSession.sendAndIgnoreError (/​

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.batchedUpdates(async () => {7 await page.click('text="Get started"');8 });9 await page.screenshot({ path: `example.png` });10 await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14 const browser = await chromium.launch();15 const context = await browser.newContext();16 const page = await context.newPage();17 await page.batchedUpdates(async () => {18 await page.click('text="Get started"');19 await page.click('text="Get started"');20 });21 await page.screenshot({ path: `example.png` });22 await browser.close();23})();24const { chromium } = require('playwright');25(async () => {26 const browser = await chromium.launch();27 const context = await browser.newContext();28 const page = await context.newPage();29 await page.batchedUpdates(async () => {30 await page.click('text="Get started"');31 await page.waitForNavigation();32 await page.click('text="Get started"');33 });34 await page.screenshot({ path: `example.png` });35 await browser.close();36})();

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Using AI Code Generation

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1const playwright = require('playwright');2const browser = await playwright.chromium.launch();3const page = await browser.newPage();4await page.batchedUpdates(() => {5 console.log('Batched updates');6});7await browser.close();

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Using AI Code Generation

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1const playwright = require('playwright');2const { chromium } = playwright;3const { BatchedUpdates } = require('@playwright/​test/​lib/​batchedUpdates');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await BatchedUpdates.batchedUpdates(page, async () => {9 await page.click('text=Get started');10 await page.click('text=Docs');11 await page.click('text=API');12 });13 await browser.close();14})();

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1const { chromium } = require('playwright');2const { batchedUpdates } = require('playwright/​lib/​server/​dom.js');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.click('text=Get started');8 await batchedUpdates(page, async () => {9 await page.click('text=Create a new project');10 await page.click('text=Learn more');11 });12 await page.close();13 await context.close();14 await browser.close();15})();16const dialog = await page.waitForEvent("dialog");17await dialog.accept();18expect(await page.isVisible("#dialog")).toBe(true);19const dialog = await page.waitForEvent("dialog");20await dialog.dismiss();21expect(await page.isVisible("#dialog")).toBe(false);22const dialog = await page.waitForEvent("dialog");23await dialog.accept();24expect(await page.isVisible("#dialog")).toBe(true);25await dialog.dismiss();26expect(await page.isVisible("#dialog")).toBe(false);27I’m trying to test a web application with Playwright. I’m using the latest version of Playwright (1.10.0). I’m trying to test the following scenario:28const dialog = await page.waitForEvent("dialog");29await dialog.accept();30await page.click("#button");31The test fails at the line await page.click("#button") with the following error:

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Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

  1. What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
  2. How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
  3. Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
  4. What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
  5. Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
  6. Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
  7. Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
  8. Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
  9. Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
  10. Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
  11. Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
  12. Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.

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