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How to use isAsyncPlaceholder method in Playwright Internal

Best JavaScript code snippet using playwright-internal

transition.js

Source:transition.js

...66}67function isSameChild (child: VNode, oldChild: VNode): boolean {68  return oldChild.key === child.key && oldChild.tag === child.tag69}70const isNotTextNode = (c: VNode) => c.tag || isAsyncPlaceholder(c)71const isVShowDirective = d => d.name === 'show'72export default {73  name: 'transition',74  props: transitionProps,75  abstract: true,76  render (h: Function) {77    let children: any = this.$slots.default78    if (!children) {79      return80    }81    // filter out text nodes (possible whitespaces)82    children = children.filter(isNotTextNode)83    /* istanbul ignore if */84    if (!children.length) {85      return86    }87    // warn multiple elements88    if (process.env.NODE_ENV !== 'production' && children.length > 1) {89      warn(90        '<transition> can only be used on a single element. Use ' +91        '<transition-group> for lists.',92        this.$parent93      )94    }95    const mode: string = this.mode96    // warn invalid mode97    if (process.env.NODE_ENV !== 'production' &&98      mode && mode !== 'in-out' && mode !== 'out-in'99    ) {100      warn(101        'invalid <transition> mode: ' + mode,102        this.$parent103      )104    }105    const rawChild: VNode = children[0]106    // if this is a component root node and the component's107    // parent container node also has transition, skip.108    if (hasParentTransition(this.$vnode)) {109      return rawChild110    }111    // apply transition data to child112    // use getRealChild() to ignore abstract components e.g. keep-alive113    const child: ?VNode = getRealChild(rawChild)114    /* istanbul ignore if */115    if (!child) {116      return rawChild117    }118    if (this._leaving) {119      return placeholder(h, rawChild)120    }121    // ensure a key that is unique to the vnode type and to this transition122    // component instance. This key will be used to remove pending leaving nodes123    // during entering.124    const id: string = `__transition-${this._uid}-`125    child.key = child.key == null126      ? child.isComment127        ? id + 'comment'128        : id + child.tag129      : isPrimitive(child.key)130        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)131        : child.key132    const data: Object = (child.data || (child.data = {})).transition = extractTransitionData(this)133    const oldRawChild: VNode = this._vnode134    const oldChild: VNode = getRealChild(oldRawChild)135    // mark v-show136    // so that the transition module can hand over the control to the directive137    if (child.data.directives && child.data.directives.some(isVShowDirective)) {138      child.data.show = true139    }140    if (141      oldChild &&142      oldChild.data &&143      !isSameChild(child, oldChild) &&144      !isAsyncPlaceholder(oldChild) &&145      // #6687 component root is a comment node146      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)147    ) {148      // replace old child transition data with fresh one149      // important for dynamic transitions!150      const oldData: Object = oldChild.data.transition = extend({}, data)151      // handle transition mode152      if (mode === 'out-in') {153        // return placeholder node and queue update when leave finishes154        this._leaving = true155        mergeVNodeHook(oldData, 'afterLeave', () => {156          this._leaving = false157          this.$forceUpdate()158        })159        return placeholder(h, rawChild)160      } else if (mode === 'in-out') {161        if (isAsyncPlaceholder(child)) {162          return oldRawChild163        }164        let delayedLeave165        const performLeave = () => { delayedLeave() }166        mergeVNodeHook(data, 'afterEnter', performLeave)167        mergeVNodeHook(data, 'enterCancelled', performLeave)168        mergeVNodeHook(oldData, 'delayLeave', leave => { delayedLeave = leave })169      }170    }171    return rawChild172  }...

utils.js

Source:utils.js

...10function getFirstComponentChild (children) {11  if (Array.isArray(children)) {12    for (let i = 0; i < children.length; i++) {13      const c = children[i]14      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {15        return c16      }17    }18  }19}20export {21  getFirstComponentChild,22  isAsyncPlaceholder,23  getComponentName,24  isDef...

get-first-component-child.js

Source:get-first-component-child.js

...4export function getFirstComponentChild (children: ?Array<VNode>): ?VNode {5  if (Array.isArray(children)) {6    for (let i = 0; i < children.length; i++) {7      const c = children[i]8      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {9        return c10      }11    }12  }...

Using AI Code Generation

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.click('input[name="q"]');7  await page.keyboard.type('Hello World');8  await page.keyboard.press('Enter');9  await page.waitForNavigation();10  await page.screenshot({ path: `example.png` });11  await browser.close();12})();

Using AI Code Generation

1const { isAsyncPlaceholder } = require('playwright/lib/utils/stackTrace');2console.log(isAsyncPlaceholder(new Error().stack));3const test = require('./test');4test('My Test', async ({ page }) => {5  await page.evaluate(() => {6    throw new Error('Error');7  });8});

Using AI Code Generation

1const { isAsyncPlaceholder } = require('playwright/lib/utils/structs.js');2console.log(isAsyncPlaceholder({ __asyncPlaceholder: true }));3console.log(isAsyncPlaceholder({ __asyncPlaceholder: false }));4console.log(isAsyncPlaceholder({ __asyncPlaceholder: 'true' }));5console.log(isAsyncPlaceholder({ __asyncPlaceholder: 'false' }));6console.log(typeof { __asyncPlaceholder: true }.__asyncPlaceholder === 'boolean');7console.log(typeof { __asyncPlaceholder: false }.__asyncPlaceholder === 'boolean');8console.log(typeof { __asyncPlaceholder: 'true' }.__asyncPlaceholder === 'boolean');9console.log(typeof { __asyncPlaceholder: 'false' }.__asyncPlaceholder === 'boolean');

Using AI Code Generation

1const { isAsyncPlaceholder } = require('playwright/lib/utils/stackTrace');2const asyncPlaceholder = async () => {3  throw new Error('Async Placeholder');4};5(async () => {6  try {7    await asyncPlaceholder();8  } catch (e) {9    console.log(isAsyncPlaceholder(e));10  }11})();

Using AI Code Generation

1const { isAsyncPlaceholder } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  await page.fill('input[name="q"]', 'Playwright');7  await page.click('input[type="submit"]');8  await page.waitForSelector('h3');9  const element = await page.$('h3');10  console.log(isAsyncPlaceholder(element));11  await browser.close();12})();13const { isAsyncPlaceholder } = require('playwright/lib/server/dom.js');14const { chromium } = require('playwright');15(async () => {16  const browser = await chromium.launch();17  const page = await browser.newPage();18  await page.fill('input[name="q"]', 'Playwright');19  await page.click('input[type="submit"]');20  await page.waitForSelector('h3');21  const element = await page.$('h3');22  console.log(isAsyncPlaceholder(element));23  await browser.close();24})();25Your name to display (optional):26Your name to display (optional):27Your name to display (optional):28Your name to display (optional):29const { chromium } = require('playwright');30(async () => {31  const browser = await chromium.launch();

Using AI Code Generation

1const { isAsyncPlaceholder } = require('playwright/lib/internal/asyncstack');2const { Page } = require('playwright/lib/page');3const { Playwright } = require('playwright/lib/server/playwright');4const { Browser } = require('playwright/lib/server/browser');5const { BrowserContext } = require('playwright/lib/server/browserContext');6const { Frame } = require('playwright/lib/server/frame');7const { ElementHandle } = require('playwright/lib/server/elementHandler');8const { JSHandle } = require('playwright/lib/server/javascript');9const page = new Page(new BrowserContext(new Browser(new Playwright()), null), null);10const frame = new Frame(page, null, null);11const element = new ElementHandle(frame, null, null);12const jsHandle = new JSHandle(element, null, null);13const isAsyncPlaceholderResult = isAsyncPlaceholder(jsHandle);14console.log("isAsyncPlaceholderResult: " + isAsyncPlaceholderResult);

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