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How to use genExpression method in Playwright Internal
Best JavaScript code snippet using playwright-internal
vnode.js
Source: vnode.js 
...23 case 2 /* TEXT */:24 genText(node, context)25 break26 case 4 /* SIMPLE_EXPRESSION */:27 genExpression(node, context)28 break29 case 5 /* INTERPOLATION */:30 genInterpolation(node, context)31 break32 case 12 /* TEXT_CALL */:33 genNode(node.codegenNode, context)34 break35 case 8 /* COMPOUND_EXPRESSION */:36 genCompoundExpression(node, context)37 break38 case 3 /* COMMENT */:39 break40 case 13 /* VNODE_CALL */:41 genVNodeCall(node, context)42 break43 case 14 /* JS_CALL_EXPRESSION */:44 genCallExpression(node, context)45 break46 case 15 /* JS_OBJECT_EXPRESSION */:47 genObjectExpression(node, context)48 break49 case 17 /* JS_ARRAY_EXPRESSION */:50 genArrayExpression(node, context)51 break52 case 18 /* JS_FUNCTION_EXPRESSION */:53 genFunctionExpression(node, context)54 break55 case 19 /* JS_CONDITIONAL_EXPRESSION */:56 genConditionalExpression(node, context)57 break58 case 20 /* JS_CACHE_EXPRESSION */:59 genCacheExpression(node, context)60 break61 // SSR only types62 case 21 /* JS_BLOCK_STATEMENT */:63 genNodeList(node.body, context, true, false)64 break65 case 22 /* JS_TEMPLATE_LITERAL */:66 genTemplateLiteral(node, context)67 break68 case 23 /* JS_IF_STATEMENT */:69 genIfStatement(node, context)70 break71 case 24 /* JS_ASSIGNMENT_EXPRESSION */:72 genAssignmentExpression(node, context)73 break74 case 25 /* JS_SEQUENCE_EXPRESSION */:75 genSequenceExpression(node, context)76 break77 case 26 /* JS_RETURN_STATEMENT */:78 genReturnStatement(node, context)79 break80 }81}82function genVNodeCall(node, context) {83 const { push, helper, pure } = context84 const { tag, props, children, patchFlag, dynamicProps, directives, isBlock, disableTracking } = node85 if (directives) {86 push(helper(WITH_DIRECTIVES) + `(`)87 }88 if (isBlock) {89 push(`(${helper(OPEN_BLOCK)}(${disableTracking ? `true` : ``}), `)90 }91 if (pure) {92 push(PURE_ANNOTATION)93 }94 push(helper(isBlock ? CREATE_BLOCK : CREATE_VNODE) + `(`, node)95 genNodeList(genNullableArgs([tag, props, children, patchFlag, dynamicProps]), context)96 push(`)`)97 if (isBlock) {98 push(`)`)99 }100 if (directives) {101 push(`, `)102 genNode(directives, context)103 push(`)`)104 }105}106function genNullableArgs(args) {107 let i = args.length108 while (i--) {109 if (args[i] != null)110 break111 }112 return args.slice(0, i + 1).map(arg => arg || `null`)113}114function genNodeList(nodes, context, multilines = false, comma = true) {115 const { push, newline } = context116 for (let i = 0; i < nodes.length; i++) {117 const node = nodes[i]118 if (shared.isString(node)) {119 push(node)120 }121 else if (shared.isArray(node)) {122 genNodeListAsArray(node, context)123 }124 else {125 genNode(node, context)126 }127 if (i < nodes.length - 1) {128 if (multilines) {129 comma && push(',')130 newline()131 }132 else {133 comma && push(', ')134 }135 }136 }137}138function genExpression(node, context) {139 const { content, isStatic } = node140 context.push(isStatic ? JSON.stringify(content) : content, node)141}142function genNodeListAsArray(nodes, context) {143 const multilines = nodes.length > 3 || nodes.some(n => isArray(n) || !isText$1(n))144 context.push(`[`)145 multilines && context.indent()146 genNodeList(nodes, context, multilines);147 multilines && context.deindent()148 context.push(`]`)149}150function genConditionalExpression(node, context) {151 const { test, consequent, alternate, newline: needNewline } = node152 const { push, indent, deindent, newline } = context153 // çææ¡ä»¶è¡¨è¾¾å¼154 if (test.type === 4 /* SIMPLE_EXPRESSION */) {155 const needsParens = !isSimpleIdentifier(test.content)156 needsParens && push(`(`)157 genExpression(test, context)158 needsParens && push(`)`)159 }160 else {161 push(`(`)162 genNode(test, context)163 push(`)`)164 }165 // æ¢è¡å 缩è¿166 needNewline && indent()167 context.indentLevel++168 needNewline || push(` `)169 // çæ主é»è¾ä»£ç 170 push(`? `)171 genNode(consequent, context)...
cal.js
Source: cal.js
...58 this.second = b;59 this.operator = '+';60 this.priority = 0;61 this.isExpression = true;62 this.genExpression();63 }64 calculateRule(){65 return true66 }67 genExpression(){68 this.calculateRule();69 this.expression = `${this.first.expression}${this.operator}${this.second.expression}`;70 this.val = eval(this.expression);71 }72 wrapBrackets(){73 this.expression = `(${this.expression})`;74 this.priority+=2;75 }76 refresh(){77 this.first.refresh();78 this.second.refresh();79 this.genExpression();80 }81}8283class PlusUnit extends ExpressionUnit{84 constructor(a,b){85 super(a,b);86 this.genExpression();87 }88}8990class MinusUnit extends ExpressionUnit{91 constructor(a,b){92 super(a,b);93 this.operator = '-';94 this.priority = 0;95 this.genExpression();96 }97 calculateRule(){98 99 while(this.first.val < this.second.val){100 this.first.refresh()101 this.second.refresh();102 }103104 //第äºä¸ªåæ°æ¯å æ³è¡¨è¾¾å¼æåæ³è¡¨è¾¾å¼ï¼å æ¬å·105 if(this.second.isExpression && this.second.priority == this.priority){106 if(this.second instanceof MinusUnit || this.second instanceof PlusUnit){107 this.second.wrapBrackets();108 }109 }110 }111}112113class MultiplyUnit extends ExpressionUnit{114 constructor(a,b){115 super(a,b);116 this.operator = '*';117 this.priority = 1;118 this.genExpression();119 }120 calculateRule(){121 if(this.first.isExpression && this.first.priority < this.priority){122 if(this.first instanceof MinusUnit || this.first instanceof PlusUnit){123 this.first.wrapBrackets();124 }125 }126 //第äºä¸ªåæ°æ¯å æ³è¡¨è¾¾å¼æåæ³è¡¨è¾¾å¼ï¼å æ¬å·127 if(this.second.isExpression && this.second.priority < this.priority){128 if(this.second instanceof MinusUnit || this.second instanceof PlusUnit){129 this.second.wrapBrackets();130 }131 }132 }133}134135class DivisionUnit extends ExpressionUnit{136 constructor(a,b){137 super(a,b);138 this.operator = '/';139 this.priority = 1;140 this.genExpression();141 }142 calculateRule(){143 144 while(this.second.val == 0 || (this.first.val%this.second.val !=0)){145 this.first.refresh();146 this.second.refresh();147 }148149 if(this.first.isExpression && this.first.priority <= this.priority){150 this.first.wrapBrackets();151 }152 if(this.second.isExpression && this.second.priority <= this.priority){153 this.second.wrapBrackets();154 }
...
autociv_hotkey_entity.js
Source: autociv_hotkey_entity.js
...130 const genExpression = list =>131 expression.replace(/([^&!|()]+)/g, match =>132 list.indexOf(match) == -1 ? "0" : "1")133 // Test if expression is a valid expression ([] as dummy data)134 const testExpression = genExpression([])135 // /^[01&!|()]+$/ regex matches only 0 1 and boolean operators136 if (!/^[01&!|()]+$/.test(testExpression))137 {138 // Known pitfall:139 // & and && ( | and || ) are equivalent for 1 bit operations.140 // Use & and | or && and || but do not mix both in the same expression.141 warn(`INVALID EXPRESSION: "${expression}" Only allowed operators are: & ! | ( )`)142 return143 }144 // Test expression is well defined (doesn't throw errors)145 try { !!Function("return " + testExpression)() }146 catch (err)147 {148 warn(`INVALID EXPRESSION: "${expression}" Expression wrongly defined`)149 return150 }151 return list => !!Function("return " + genExpression(list))()...
gen.js
Source: gen.js
...107 for (let i = 0; branchs && i < branchs.length; i++) {108 const { condition, body } = branchs[i]109 if (i === 0) {110 context.code += `if (`111 genExpression(condition, context)112 context.code += `) {\r\n`113 } else if (condition) {114 context.code += ` else if (`115 genExpression(condition, context)116 context.code += `) {\r\n`117 } else {118 context.code += ' else {\r\n'119 }120 generate(body, context)121 context.code += '\r\n}'122 }123}124export function genFor(node, context) {125 const {126 data: { assignment, condition, iterator, body }127 } = node128 context.code += 'for ('129 genAssignment(assignment, context)130 context.code += ' '131 genConditionalExpression(condition, context)132 context.code += '; '133 genExpression(iterator, context)134 context.code += ') {\r\n'135 generate(body, context)136 context.code += '\r\n}'137}138export function genFunctionCall(node, context) {139 const {140 data: {141 variable: { type: varType, name: varName },142 name,143 args144 }145 } = node146 context.code += `let ${name} = `147 context.code += `${context.inAsync ? 'async ' : ''}${name}(`148 for (let i = 0; args && i < args.length; i++) {149 context.code += `${i > 0 ? ', ' : ''}${genExpression(args[i], context)}`150 }151 context.code += ');'152}153export function genTryCatch(node, context) {154 const {155 data: { tryBody, catchBody, finallyBody }156 } = node157 context.code += 'try {\r\n'158 context.code += generate(tryBody, context)159 context.code += '\r\n}'160 if (catchBody) {161 const { varName, body } = catchBody162 context.code += `catch (${varName ? varName : ''}) {\r\n`163 context.code += generate(body, context)164 context.code += '\r\n}'165 }166 if (finallyBody) {167 context.code += `finall {\r\n`168 context.code += generate(finallyBody, context)169 context.code += '\r\n}'170 }171}172export function genConditionalExpression(parts, context) {173 for (let i = 0; parts && i < parts.length; i++) {174 const { concat, expression } = parts[i]175 context.code += `${concat ? ` ${concat}` : ''}`176 genExpression(expression, context)177 }178}179/**180 * ææ¶ç´æ¥ä½¿ç¨js 表达å¼181 * @param {*} node182 * @param {*} context183 */184export function genExpression(node, context) {185 const {186 data: { type, content }187 } = node188 context.code += content...
store.js
Source: store.js
...20/**21 * @description çæå
¬å¼22 * @param item å¥é计ç®ç»æéé¢çä¸é¡¹23 */24function genExpression(item){25 let exp = "";26 for(let i = 0; i < item.data.length; i++){27 exp = `${exp}${item.data[i].outcome.odds} à `28 }29 exp = `${exp}${TICKET_VALUE} à ${item.amount}å`;30 return exp;31}32const store = new Vuex.Store({33 state: {34 betslipInfo,35 result,36 ratio: multi,37 pay: resultFormat.length * +multi * 2,38 bonusInfo: false,39 bonusCompute: {},40 isCanOptimizeEx: false41 },42 // åæ¥æ¹å43 mutations: {44 updateBetslip(state){45 let bonusInfo = games.Bonus.getBonusInfo();46 let bonusCompute = {47 max: {48 bonus: bonusInfo.maxBonus,49 expression: genExpression(bonusInfo.data[bonusInfo.data.length - 1])50 },51 min: {52 bonus: bonusInfo.minBonus,53 expression: genExpression(bonusInfo.data[0])54 }55 };56 state.isCanOptimizeEx = games.Bonus.bonusCanHotCool(state.result);57 state.bonusInfo = bonusInfo;58 state.pay = bonusInfo.pay;59 state.bonusCompute = bonusCompute;60 }61 },62 actions: {63 initBonus({commit, state}, payload){64 let { result, pay } = state;65 let defOps = {66 data: result,67 optimizeType: 0,...
util.js
Source: util.js
...28 });29 return node;30}31exports.mergeMember = mergeMember;32function genExpression(indexs) {33 let property = undefined;34 for (const index of indexs) {35 if (!property) {36 property = t.identifier(index);37 }38 else {39 property = t.binaryExpression('+', t.binaryExpression('+', property, t.stringLiteral('_')), t.identifier(index));40 }41 }42 return property;43}44exports.genExpression = genExpression;45exports.fnName = {46 prop: '_$p',...
DynamicBinding.js
Source: DynamicBinding.js
...33 });34 } else {35 let name;36 keys.some(key => {37 if (genExpression(expression) === genExpression(this._map[key])) {38 name = this._store[key].name;39 return true;40 }41 return false;42 });43 return name ? name : this._bindDynamicValue({44 expression,45 isDirective46 });47 }48 }49 getStore() {50 return this._store;51 }...
jsx-plus.js
Source: jsx-plus.js
...8 const ast = parseExpression(`9 <View x-for={val in array}>{val}</View>10 `);11 _transformList(ast, adapter);12 expect(genExpression(ast)).toEqual('<View a:for={array} a:for-item="val">{val}</View>');13 });14 });15 describe('condition', () => {16 it('simple', () => {17 const ast = parseExpression(`18 <View x-if={value}></View>19 `);20 _transformCondition(ast, adapter);21 expect(genExpression(ast)).toEqual('<View a:if={value}></View>');22 });23 });24 describe('fragment', () => {25 it('simple', () => {26 const ast = parseExpression(`27 <Fragment foo="bar"></Fragment>28 `);29 _transformFragment(ast);30 expect(genExpression(ast)).toEqual('<block foo="bar"></block>');31 });32 });...
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch();4 const page = await browser.newPage();5 await page.click('text=Docs');6 const element = await page.$('text=Getting Started');7 const expression = await element._client.send('Playwright.genExpression', {8 });9 console.log(expression);10 await browser.close();11})();12await page.$("text=Getting Started");13#### elementHandle.evaluateHandle(pageFunction[, arg])14const divCount = await page.evaluate(() => document.querySelectorAll('div').length);15const divCount = await page.$eval('div', divs => divs.length);16#### elementHandle.evaluate(pageFunction[, arg])17const divCount = await page.evaluate(() => document.querySelectorAll('div').length);18const divCount = await page.$eval('div', divs => divs.length);
Using AI Code Generation
1const playwright = require('playwright');2const { genExpression } = require('playwright/lib/server/frames');3(async () => {4 const browser = await playwright.chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.click(genExpression('text=Get Started'));8 await page.screenshot({ path: `example.png` });9 await browser.close();10})();11const playwright = require('playwright');12const { genExpression } = require('playwright-gen-expression');13(async () => {14 const browser = await playwright.chromium.launch();15 const context = await browser.newContext();16 const page = await context.newPage();17 await page.click(genExpression('text=Get Started'));18 await page.screenshot({ path: `example.png` });19 await browser.close();20})();21const playwright = require('playwright');22const { genExpression } = require('playwright-gen-expression');23(async () => {24 const browser = await playwright.chromium.launch();25 const context = await browser.newContext();26 const page = await context.newPage();27 await page.click(genExpression('text=Get Started'));28 await page.screenshot({ path: `example.png` });29 await browser.close();30})();31[MIT](LICENSE)
Using AI Code Generation
1const { genExpression } = require('playwright-core/lib/server/fraplements/recorder/recorderSupplement.js');2const expression = genExpression('click', 'button', {text: 'Click me'});3console.log(expression);4const { genExpression } = require('playwright/lib/client/codeGenerator');5const selector = 'text=Get Started';6const expression = genExpression(selector);7console.log(expression);8### Ou{ genExtression } = require('pputt-gen-expression');9const selector = 'text=Get Started';10const expression = genExpression(selector);11console.log(expression);12[MIT](LICENSE)
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch();4 const page = await browser.newPage();5 await page.click('text=Docs');6 const element = await page.$('text=Getting Started');7 const expression = await element._client.send('Playwright.genExpression', {8 });9 console.log(expression);10 await browser.close();11})();12await page.$("text=Getting Started");13#### elementHandle.evaluateHandle(pageFunction[, arg])14const playwright = require('playwright');15const {umage } = require('pent to pa/lib/page');16consts{ snternalPage } = require('playwright/lib/i to `pa/page');17const { genExpressiong} = require('./genExpression');18Page.prototype.genExpression = genExpression;19(async () => {20 const browser = await playwright.chromium.launch({ headless: false });21 const context = await browser.newContext();22 const page = await context.newPage();23 const title = await page.genExpression('document.title');24 console.log('title', title);25 await browser.close();26})();
Using AI Code Generation
1const { genExpression } = require('playwright-core/lib/server/frames');2const selector = 'div';3const expression = genExpression(selector);4console.log(expression);5const { parseSelector } = require('playwright-core/lib/server/frames');6const selector = 'div';7const expression = parseSelector(selector);8console.log(expression);9For any questions or concerns, please feel free to [open an issue](
Using AI Code Generation
1const playwright = require('playwright');2const { Page } = require('playwright/lib/page');3const { InternalPage } = require('playwright/lib/internal/page');4const { genExpression } = require('./genExpression');5Page.prototype.genExpression = genExpression;6(async () => {7 const browser = await playwright.chromium.launch({ headless: false });8 const context = await browser.newContext();9 const page = await context.newPage();10 const title = await page.genExpression('document.title');11 console.log('title', title);12 await browser.close();13})();
Using AI Code Generation
1const { genExpression } = require('@playwright/test/lib/server/frames');2const expression = genExpression('document.querySelector("input").value', true);3console.log(expression);4const { genExpression } = require('@playwright/test/lib/server/frames');5const expression = genExpression('document.querySelector("input").value', true);6console.log(expression);7const { test, expect } = require('@playwright/test');8test('should click on a button', async ({ page }) => {9 await page.click('text=Get started');10 await page.waitForSelector('text=Get started with Playwright');11 const title = await page.textContent('h1');12 expect(title).toBe('Get started with Playwright');13});14const { test, expect } = require('@playwright/test');
Using AI Code Generation
1const { genExpression } = require("playwright/lib/internal/selectorEngine");2const selector = genExpression("text=Hello World!");3const { genExpression } = require("playwright/lib/internal/selectorEngine");4const selector = genExpression("css=div");5const { genExpression } = require("playwright/lib/internal/selectorEngine");6const { genExpression } = require("playwright/lib/internal/selectorEngine");7const selector = genExpression("css=div[title='Hello World!']");8const { genExpression } = require("playwright/lib/internal/selectorEngine");9const selector = genExpression("text=Hello World!");10const { genExpression } = require("playwright/lib/internal/selectorEngine");11const selector = genExpression("label=Hello World!");12const { genExpression } = require("playwright/lib/internal/selectorEngine");13const selector = genExpression("data-testid=hello-world");14const { genExpression } = require("playwright/lib/internal/selectorEngine");15 await page.click('text=Get started');16 await page.waitForSelector('text=Get started with Playwright');17 const title = await page.textContent('h1');18 expect(title).toBe('Get started with Playwright');19});20const { test, expect } = require('@playwright/test');21test('should fill a form', async ({ page }) => {22 await page.click('text=Get started');23 await page.waitForSelector('text=Get started with Playwright');
Using AI Code Generation
1const { genExpression } = require("playwright/lib/internal/selectorEngine");2const selector = genExpression("text=Hello World!");3const { genExpression } = require("playwright/lib/internal/selectorEngine");4const selector = genExpression("css=div");5const { genExpression } = require("playwright/lib/internal/selectorEngine");6const { genExpression } = require("playwright/lib/internal/selectorEngine");7const selector = genExpression("css=div[title='Hello World!']");8const { genExpression } = require("playwright/lib/internal/selectorEngine");9const selector = genExpression("text=Hello World!");10const { genExpression } = reqwire("playwright/lib/internal/selectorEngine");11const selector = genExpression("label=Hello World!");12const { genExpression } = require("playwright/lib/internal/selectorEngine");13const selector = genExpression("data-testid=hello-world");14const { genExpression } = require("playwright/lib/internal/selectorEngine");15const selector = geait page.click('text=TypeScript');16 await page.fill('input[name="name"]', 'John Doe');17 await page.click('text=Submit');18 await page.waitForSelector('text=Thank you for your feedback!');19 const title = await page.textContent('h1');20 expect(title).toBe('Thank you for your feedback!');21});22const { test, expect } = require('@play
StackOverFlow community discussions
Questions
Discussion
Jest + Playwright - Test callbacks of event-based DOM library
How to run a list of test suites in a single file concurrently in jest?
Running Playwright in Azure Function
firefox browser does not start in playwright
Is it possible to get the selector from a locator object in playwright?
firefox browser does not start in playwright
This question is quite close to a "need more focus" question. But let's try to give it some focus:
Does Playwright has access to the cPicker object on the page? Does it has access to the window object?
Yes, you can access both cPicker and the window object inside an evaluate call.
Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?
Exactly, or you can assign values to a javascript variable:
const cPicker = new ColorPicker({
onClickOutside(e){
},
onInput(color){
window['color'] = color;
},
onChange(color){
window['result'] = color;
}
})
And then
it('Should call all callbacks with correct arguments', async() => {
await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})
// Wait until the next frame
await page.evaluate(() => new Promise(requestAnimationFrame))
// Act
// Assert
const result = await page.evaluate(() => window['color']);
// Check the value
})
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