Best JavaScript code snippet using playwright-internal
ReactFiberUnwindWork.js
Source:ReactFiberUnwindWork.js  
...135    };136  }137  return update;138}139function attachPingListener(140  root: FiberRoot,141  renderExpirationTime: ExpirationTime,142  thenable: Thenable,143) {144  // Attach a listener to the promise to "ping" the root and retry. But145  // only if one does not already exist for the current render expiration146  // time (which acts like a "thread ID" here).147  let pingCache = root.pingCache;148  let threadIDs;149  if (pingCache === null) {150    pingCache = root.pingCache = new PossiblyWeakMap();151    threadIDs = new Set();152    pingCache.set(thenable, threadIDs);153  } else {154    threadIDs = pingCache.get(thenable);155    if (threadIDs === undefined) {156      threadIDs = new Set();157      pingCache.set(thenable, threadIDs);158    }159  }160  if (!threadIDs.has(renderExpirationTime)) {161    // Memoize using the thread ID to prevent redundant listeners.162    threadIDs.add(renderExpirationTime);163    let ping = pingSuspendedRoot.bind(164      null,165      root,166      thenable,167      renderExpirationTime,168    );169    if (enableSchedulerTracing) {170      ping = Schedule_tracing_wrap(ping);171    }172    thenable.then(ping, ping);173  }174}175function throwException(176  root: FiberRoot,177  returnFiber: Fiber,178  sourceFiber: Fiber,179  value: mixed,180  renderExpirationTime: ExpirationTime,181) {182  // The source fiber did not complete.183  sourceFiber.effectTag |= Incomplete;184  // Its effect list is no longer valid.185  sourceFiber.firstEffect = sourceFiber.lastEffect = null;186  if (187    value !== null &&188    typeof value === 'object' &&189    typeof value.then === 'function'190  ) {191    // This is a thenable.192    const thenable: Thenable = (value: any);193    // Schedule the nearest Suspense to re-render the timed out view.194    let workInProgress = returnFiber;195    do {196      if (197        workInProgress.tag === SuspenseComponent &&198        shouldCaptureSuspense(workInProgress)199      ) {200        // Found the nearest boundary.201        // Stash the promise on the boundary fiber. If the boundary times out, we'll202        // attach another listener to flip the boundary back to its normal state.203        const thenables: Set<Thenable> = (workInProgress.updateQueue: any);204        if (thenables === null) {205          const updateQueue = (new Set(): any);206          updateQueue.add(thenable);207          workInProgress.updateQueue = updateQueue;208        } else {209          thenables.add(thenable);210        }211        // If the boundary is outside of concurrent mode, we should *not*212        // suspend the commit. Pretend as if the suspended component rendered213        // null and keep rendering. In the commit phase, we'll schedule a214        // subsequent synchronous update to re-render the Suspense.215        //216        // Note: It doesn't matter whether the component that suspended was217        // inside a concurrent mode tree. If the Suspense is outside of it, we218        // should *not* suspend the commit.219        if ((workInProgress.mode & ConcurrentMode) === NoContext) {220          workInProgress.effectTag |= DidCapture;221          // We're going to commit this fiber even though it didn't complete.222          // But we shouldn't call any lifecycle methods or callbacks. Remove223          // all lifecycle effect tags.224          sourceFiber.effectTag &= ~(LifecycleEffectMask | Incomplete);225          if (sourceFiber.tag === ClassComponent) {226            const currentSourceFiber = sourceFiber.alternate;227            if (currentSourceFiber === null) {228              // This is a new mount. Change the tag so it's not mistaken for a229              // completed class component. For example, we should not call230              // componentWillUnmount if it is deleted.231              sourceFiber.tag = IncompleteClassComponent;232            } else {233              // When we try rendering again, we should not reuse the current fiber,234              // since it's known to be in an inconsistent state. Use a force updte to235              // prevent a bail out.236              const update = createUpdate(Sync);237              update.tag = ForceUpdate;238              enqueueUpdate(sourceFiber, update);239            }240          }241          // The source fiber did not complete. Mark it with Sync priority to242          // indicate that it still has pending work.243          sourceFiber.expirationTime = Sync;244          // Exit without suspending.245          return;246        }247        // Confirmed that the boundary is in a concurrent mode tree. Continue248        // with the normal suspend path.249        attachPingListener(root, renderExpirationTime, thenable);250        workInProgress.effectTag |= ShouldCapture;251        workInProgress.expirationTime = renderExpirationTime;252        return;253      } else if (254        enableSuspenseServerRenderer &&255        workInProgress.tag === DehydratedSuspenseComponent256      ) {257        attachPingListener(root, renderExpirationTime, thenable);258        // Since we already have a current fiber, we can eagerly add a retry listener.259        let retryCache = workInProgress.memoizedState;260        if (retryCache === null) {261          retryCache = workInProgress.memoizedState = new PossiblyWeakSet();262          const current = workInProgress.alternate;263          invariant(264            current,265            'A dehydrated suspense boundary must commit before trying to render. ' +266              'This is probably a bug in React.',267          );268          current.memoizedState = retryCache;269        }270        // Memoize using the boundary fiber to prevent redundant listeners.271        if (!retryCache.has(thenable)) {...ReactFiberThrow.js
Source:ReactFiberThrow.js  
...139    };140  }141  return update;142}143function attachPingListener(144  root: FiberRoot,145  renderExpirationTime: ExpirationTime,146  thenable: Thenable,147) {148  // Attach a listener to the promise to "ping" the root and retry. But149  // only if one does not already exist for the current render expiration150  // time (which acts like a "thread ID" here).151  let pingCache = root.pingCache;152  let threadIDs;153  if (pingCache === null) {154    pingCache = root.pingCache = new PossiblyWeakMap();155    threadIDs = new Set();156    pingCache.set(thenable, threadIDs);157  } else {158    threadIDs = pingCache.get(thenable);159    if (threadIDs === undefined) {160      threadIDs = new Set();161      pingCache.set(thenable, threadIDs);162    }163  }164  if (!threadIDs.has(renderExpirationTime)) {165    // Memoize using the thread ID to prevent redundant listeners.166    threadIDs.add(renderExpirationTime);167    let ping = pingSuspendedRoot.bind(168      null,169      root,170      thenable,171      renderExpirationTime,172    );173    if (enableSchedulerTracing) {174      ping = Schedule_tracing_wrap(ping);175    }176    thenable.then(ping, ping);177  }178}179function throwException(180  root: FiberRoot,181  returnFiber: Fiber,182  sourceFiber: Fiber,183  value: mixed,184  renderExpirationTime: ExpirationTime,185) {186  // The source fiber did not complete.187  // æº fiber 没æå®æã188  sourceFiber.effectTag |= Incomplete;189  // Its effect list is no longer valid.190  // å
¶ effect å表ä¸åææã191  sourceFiber.firstEffect = sourceFiber.lastEffect = null;192  if (193    value !== null &&194    typeof value === 'object' &&195    typeof value.then === 'function'196  ) {197    // This is a thenable.198    const thenable: Thenable = (value: any);199    checkForWrongSuspensePriorityInDEV(sourceFiber);200    let hasInvisibleParentBoundary = hasSuspenseContext(201      suspenseStackCursor.current,202      (InvisibleParentSuspenseContext: SuspenseContext),203    );204    // Schedule the nearest Suspense to re-render the timed out view.205    let workInProgress = returnFiber;206    do {207      if (208        workInProgress.tag === SuspenseComponent &&209        shouldCaptureSuspense(workInProgress, hasInvisibleParentBoundary)210      ) {211        // Found the nearest boundary.212        // Stash the promise on the boundary fiber. If the boundary times out, we'll213        // attach another listener to flip the boundary back to its normal state.214        const thenables: Set<Thenable> = (workInProgress.updateQueue: any);215        if (thenables === null) {216          const updateQueue = (new Set(): any);217          updateQueue.add(thenable);218          workInProgress.updateQueue = updateQueue;219        } else {220          thenables.add(thenable);221        }222        // If the boundary is outside of batched mode, we should *not*223        // suspend the commit. Pretend as if the suspended component rendered224        // null and keep rendering. In the commit phase, we'll schedule a225        // subsequent synchronous update to re-render the Suspense.226        //227        // Note: It doesn't matter whether the component that suspended was228        // inside a batched mode tree. If the Suspense is outside of it, we229        // should *not* suspend the commit.230        if ((workInProgress.mode & BatchedMode) === NoMode) {231          workInProgress.effectTag |= DidCapture;232          // We're going to commit this fiber even though it didn't complete.233          // But we shouldn't call any lifecycle methods or callbacks. Remove234          // all lifecycle effect tags.235          sourceFiber.effectTag &= ~(LifecycleEffectMask | Incomplete);236          if (sourceFiber.tag === ClassComponent) {237            const currentSourceFiber = sourceFiber.alternate;238            if (currentSourceFiber === null) {239              // This is a new mount. Change the tag so it's not mistaken for a240              // completed class component. For example, we should not call241              // componentWillUnmount if it is deleted.242              sourceFiber.tag = IncompleteClassComponent;243            } else {244              // When we try rendering again, we should not reuse the current fiber,245              // since it's known to be in an inconsistent state. Use a force updte to246              // prevent a bail out.247              const update = createUpdate(Sync, null);248              update.tag = ForceUpdate;249              enqueueUpdate(sourceFiber, update);250            }251          }252          // The source fiber did not complete. Mark it with Sync priority to253          // indicate that it still has pending work.254          sourceFiber.expirationTime = Sync;255          // Exit without suspending.256          return;257        }258        // Confirmed that the boundary is in a concurrent mode tree. Continue259        // with the normal suspend path.260        attachPingListener(root, renderExpirationTime, thenable);261        workInProgress.effectTag |= ShouldCapture;262        workInProgress.expirationTime = renderExpirationTime;263        return;264      } else if (265        enableSuspenseServerRenderer &&266        workInProgress.tag === DehydratedSuspenseComponent267      ) {268        attachPingListener(root, renderExpirationTime, thenable);269        // Since we already have a current fiber, we can eagerly add a retry listener.270        let retryCache = workInProgress.memoizedState;271        if (retryCache === null) {272          retryCache = workInProgress.memoizedState = new PossiblyWeakSet();273          const current = workInProgress.alternate;274          invariant(275            current,276            'A dehydrated suspense boundary must commit before trying to render. ' +277            'This is probably a bug in React.',278          );279          current.memoizedState = retryCache;280        }281        // Memoize using the boundary fiber to prevent redundant listeners.282        if (!retryCache.has(thenable)) {...ReactFiberThrow.old.js
Source:ReactFiberThrow.old.js  
...61      };62    }63    return update;64  }65  function attachPingListener(root, wakeable, lanes) {66    // Attach a listener to the promise to "ping" the root and retry. But only if67    // one does not already exist for the lanes we're currently rendering (which68    // acts like a "thread ID" here).69    var pingCache = root.pingCache;70    var threadIDs;71    if (pingCache === null) {72      pingCache = root.pingCache = new PossiblyWeakMap$2();73      threadIDs = new Set();74      pingCache.set(wakeable, threadIDs);75    } else {76      threadIDs = pingCache.get(wakeable);77      if (threadIDs === undefined) {78        threadIDs = new Set();79        pingCache.set(wakeable, threadIDs);80      }81    }82    if (!threadIDs.has(lanes)) {83      // Memoize using the thread ID to prevent redundant listeners.84      threadIDs.add(lanes);85      var ping = pingSuspendedRoot.bind(null, root, wakeable, lanes);86      wakeable.then(ping, ping);87    }88  }89  function throwException(root, returnFiber, sourceFiber, value, rootRenderLanes) {90    // The source fiber did not complete.91    sourceFiber.flags |= Incomplete; // Its effect list is no longer valid.92    sourceFiber.firstEffect = sourceFiber.lastEffect = null;93    if (value !== null && typeof value === 'object' && typeof value.then === 'function') {94      // This is a wakeable.95      var wakeable = value;96      {97        markComponentSuspended(sourceFiber, wakeable);98      }99      if ((sourceFiber.mode & BlockingMode) === NoMode) {100        // Reset the memoizedState to what it was before we attempted101        // to render it.102        var currentSource = sourceFiber.alternate;103        if (currentSource) {104          sourceFiber.updateQueue = currentSource.updateQueue;105          sourceFiber.memoizedState = currentSource.memoizedState;106          sourceFiber.lanes = currentSource.lanes;107        } else {108          sourceFiber.updateQueue = null;109          sourceFiber.memoizedState = null;110        }111      }112      var hasInvisibleParentBoundary = hasSuspenseContext(suspenseStackCursor.current, InvisibleParentSuspenseContext); // Schedule the nearest Suspense to re-render the timed out view.113      var _workInProgress = returnFiber;114      do {115        if (_workInProgress.tag === SuspenseComponent && shouldCaptureSuspense(_workInProgress, hasInvisibleParentBoundary)) {116          // Found the nearest boundary.117          // Stash the promise on the boundary fiber. If the boundary times out, we'll118          // attach another listener to flip the boundary back to its normal state.119          var wakeables = _workInProgress.updateQueue;120          if (wakeables === null) {121            var updateQueue = new Set();122            updateQueue.add(wakeable);123            _workInProgress.updateQueue = updateQueue;124          } else {125            wakeables.add(wakeable);126          } // If the boundary is outside of blocking mode, we should *not*127          // suspend the commit. Pretend as if the suspended component rendered128          // null and keep rendering. In the commit phase, we'll schedule a129          // subsequent synchronous update to re-render the Suspense.130          //131          // Note: It doesn't matter whether the component that suspended was132          // inside a blocking mode tree. If the Suspense is outside of it, we133          // should *not* suspend the commit.134          if ((_workInProgress.mode & BlockingMode) === NoMode) {135            _workInProgress.flags |= DidCapture;136            sourceFiber.flags |= ForceUpdateForLegacySuspense; // We're going to commit this fiber even though it didn't complete.137            // But we shouldn't call any lifecycle methods or callbacks. Remove138            // all lifecycle effect tags.139            sourceFiber.flags &= ~(LifecycleEffectMask | Incomplete);140            if (sourceFiber.tag === ClassComponent) {141              var currentSourceFiber = sourceFiber.alternate;142              if (currentSourceFiber === null) {143                // This is a new mount. Change the tag so it's not mistaken for a144                // completed class component. For example, we should not call145                // componentWillUnmount if it is deleted.146                sourceFiber.tag = IncompleteClassComponent;147              } else {148                // When we try rendering again, we should not reuse the current fiber,149                // since it's known to be in an inconsistent state. Use a force update to150                // prevent a bail out.151                var update = createUpdate(NoTimestamp, SyncLane);152                update.tag = ForceUpdate;153                enqueueUpdate(sourceFiber, update);154              }155            } // The source fiber did not complete. Mark it with Sync priority to156            // indicate that it still has pending work.157            sourceFiber.lanes = mergeLanes(sourceFiber.lanes, SyncLane); // Exit without suspending.158            return;159          } // Confirmed that the boundary is in a concurrent mode tree. Continue160          // with the normal suspend path.161          //162          // After this we'll use a set of heuristics to determine whether this163          // render pass will run to completion or restart or "suspend" the commit.164          // The actual logic for this is spread out in different places.165          //166          // This first principle is that if we're going to suspend when we complete167          // a root, then we should also restart if we get an update or ping that168          // might unsuspend it, and vice versa. The only reason to suspend is169          // because you think you might want to restart before committing. However,170          // it doesn't make sense to restart only while in the period we're suspended.171          //172          // Restarting too aggressively is also not good because it starves out any173          // intermediate loading state. So we use heuristics to determine when.174          // Suspense Heuristics175          //176          // If nothing threw a Promise or all the same fallbacks are already showing,177          // then don't suspend/restart.178          //179          // If this is an initial render of a new tree of Suspense boundaries and180          // those trigger a fallback, then don't suspend/restart. We want to ensure181          // that we can show the initial loading state as quickly as possible.182          //183          // If we hit a "Delayed" case, such as when we'd switch from content back into184          // a fallback, then we should always suspend/restart. Transitions apply185          // to this case. If none is defined, JND is used instead.186          //187          // If we're already showing a fallback and it gets "retried", allowing us to show188          // another level, but there's still an inner boundary that would show a fallback,189          // then we suspend/restart for 500ms since the last time we showed a fallback190          // anywhere in the tree. This effectively throttles progressive loading into a191          // consistent train of commits. This also gives us an opportunity to restart to192          // get to the completed state slightly earlier.193          //194          // If there's ambiguity due to batching it's resolved in preference of:195          // 1) "delayed", 2) "initial render", 3) "retry".196          //197          // We want to ensure that a "busy" state doesn't get force committed. We want to198          // ensure that new initial loading states can commit as soon as possible.199          attachPingListener(root, wakeable, rootRenderLanes);200          _workInProgress.flags |= ShouldCapture;201          _workInProgress.lanes = rootRenderLanes;202          return;203        } // This boundary already captured during this render. Continue to the next204        // boundary.205        _workInProgress = _workInProgress.return;206      } while (_workInProgress !== null); // No boundary was found. Fallthrough to error mode.207      // TODO: Use invariant so the message is stripped in prod?208      value = new Error((getComponentName(sourceFiber.type) || 'A React component') + ' suspended while rendering, but no fallback UI was specified.\n' + '\n' + 'Add a <Suspense fallback=...> component higher in the tree to ' + 'provide a loading indicator or placeholder to display.');209    } // We didn't find a boundary that could handle this type of exception. Start210    // over and traverse parent path again, this time treating the exception211    // as an error.212    renderDidError();213    value = createCapturedValue(value, sourceFiber);...FiberThrow.js
Source:FiberThrow.js  
...12import {13    renderDidError,14    pingSuspendedRoot,15} from '@Jeact/vDOM/FiberWorkLoop';16function attachPingListener(root, wakeable, lanes){17  let pingCache = root.pingCache;18  let threadIDs;19  if (pingCache === null){20    pingCache = root.pingCache = new WeakMap();21    threadIDs = new Set();22    pingCache.set(wakeable, threadIDs);23  } else {24    threadIDs = pingCache.get(wakeable);25    if(threadIDs === undefined){26      threadIDs = new Set();27      pingCache.set(wakeable, threadIDs);28    }29  }30  if (!threadIDs.has(lanes)){31    threadIDs.add(lanes);32    const ping = pingSuspendedRoot.bind(null, root, wakeable, lanes);33    wakeable.then(ping, ping);34  }35}36export function throwException(37  root, 38  returnFiber, 39  sourceFiber,40  value,41  rootRenderLanes42){43  sourceFiber.flags |= Incomplete;44    if(45        value !==null &&46        typeof value === 'object' &&47        typeof value.then === 'function'48    ){49        const wakeable = value;50        // hasSuspenseContext()51        const hasInvisibleParent = 52                (suspenseStackCursor.current & 53                InvisibleParentSuspenseContext) !== 0;54        // Schedule the nearest Suspense to re-render the timed out view.55        let wip = returnFiber;56        do {57            if(58                wip.tag === SuspenseComponent &&59                shouldCaptureSuspense(60                    wip, 61                    hasInvisibleParent62                )63            ){64                // Found the nearest boundary.65                //66                // Stash the promise.67                const wakeables = wip.updateQueue;68                if (wakeables === null){ 69                    const updateQueue = new Set();70                    updateQueue.add(wakeable);71                    wip.updateQueue = updateQueue;72                } else {73                    wakeables.add(wakeable);74                }75                attachPingListener(root, wakeable, rootRenderLanes);76                wip.flags |= ShouldCapture;77                wip.lanes = rootRenderLanes;78                return;79            }80            wip = wip.return;81        } while (wip !== null);82    }83    renderDidError();//update exit status...Using AI Code Generation
1const playwright = require('playwright');2const { attachPingListener } = require('playwright/lib/server/browserServer');3(async () => {4  const browserServer = await playwright.chromium.launchServer();5  attachPingListener(browserServer);6  browserServer.on('pong', (message) => console.log(message));7})();8### `attachPingListener(browserServer: BrowserServer): void`9### `attachPingListener(browserServer: BrowserServer, options: { timeout: number, interval: number }): void`Using AI Code Generation
1const playwright = require('playwright');2const path = require('path');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  await page.addInitScript(() => {9    window.attachPingListener = (name) => {10      window.addEventListener('load', () => {11        window[name] = 'loaded';12      });13    };14  });15  await page.evaluate(() => {16    attachPingListener('page1');17  });18  await page.waitForTimeout(5000);19  const page2 = await context.newPage();20  await page2.evaluate(() => {21    attachPingListener('page2');22  });23  await page2.waitForTimeout(5000);24  const page3 = await context.newPage();25  await page3.evaluate(() => {26    attachPingListener('page3');27  });28  await page3.waitForTimeout(5000);29  console.log(await page.evaluate(() => window.page1));30  console.log(await page2.evaluate(() => window.page2));31  console.log(await page3.evaluate(() => window.page3));32  await browser.close();33})();34    at ExecutionContext._evaluateInternal (/home/user/Downloads/node_modules/playwright/lib/cjs/pw-run.js:327:19)35    at processTicksAndRejections (internal/process/task_queues.js:93:5)36    at async ExecutionContext.evaluate (/home/user/Downloads/node_modules/playwright/lib/cjs/pw-run.js:309:16)37    at async Page.evaluate (/home/user/Downloads/node_modules/playwright/lib/cjs/pw-run.js:112:22)38    at async Promise.all (index 0)39    at async Promise.all (index 0)Using AI Code Generation
1const { attachPingListener } = require('playwright/lib/server/chromium/crConnection');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  attachPingListener(page);8  await browser.close();9})();10const { EventEmitter } = require('events');11function attachPingListener(page) {12  const client = page._delegate._connection._client;13  client._connection.on('message', (message) => {14    if (message.method === 'Network.loadingFailed') {15      console.log('Network.loadingFailed event received');16      console.log('message = ', message);17    }18  });19}Using AI Code Generation
1const { attachPingListener } = require('playwright/lib/server/page');2attachPingListener(page);3const { attachPingListener } = require('playwright/lib/server/browserContext');4attachPingListener(context);5const { attachPingListener } = require('playwright/lib/server/browserServer');6attachPingListener(browserServer);7const { attachPingListener } = require('playwright/lib/server/browser');8attachPingListener(browser);9const { attachPingListener } = require('playwright/lib/server/browserFetcher');10attachPingListener(browserFetcher);11const { attachPingListener } = require('playwright/lib/server/browserType');12attachPingListener(browserType);13const { attachPingListener } = require('playwright/lib/server/deviceDescriptors');14attachPingListener(deviceDescriptors);15const { attachPingListener } = require('playwright/lib/server/download');16attachPingListener(download);17const { attachPingListener } = require('playwright/lib/server/frame');18attachPingListener(frame);19const { attachPingListener } = require('playwright/lib/server/helper');20attachPingListener(helper);21const { attachPingListener } = require('playwright/lib/server/httpServer');22attachPingListener(httpServer);23const { attachPingListener } = require('playwright/lib/server/jsHandle');24attachPingListener(jsHandle);25const { attachPingListener } = require('playwright/lib/server/networkManager');26attachPingListener(networkManager);27const { attachPingListener } = require('playwright/lib/server/progress');Using AI Code Generation
1const { attachPingListener } = require('playwright/lib/server/browserType.js');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch({ headless: false });5  attachPingListener(browser);6  const page = await browser.newPage();7})();Using AI Code Generation
1const { attachPingListener } = require('playwright/lib/utils/transport');2attachPingListener((message) => {3  console.log(message);4});5const { attachPingListener } = require('playwright/lib/utils/transport');6attachPingListener((message) => {7  console.log(message);8});9const { attachPingListener } = require('playwright/lib/utils/transport');10attachPingListener((message) => {11  console.log(message);12});13const { attachPingListener } = require('playwright/lib/utils/transport');14attachPingListener((message) => {15  console.log(message);16});17const { attachPingListener } = require('playwright/lib/utils/transport');18attachPingListener((message) => {19  console.log(message);20});21const { attachPingListener } = require('playwright/lib/utils/transport');22attachPingListener((message) => {23  console.log(message);24});25const { attachPingListener } = require('playwright/lib/utils/transport');26attachPingListener((message) => {27  console.log(message);28});29const { attachPingListener } = require('playwright/lib/utils/transport');30attachPingListener((message) => {31  console.log(message);32});33const { attachPingListener } = require('playwright/lib/utils/transport');34attachPingListener((message) => {35  console.log(message);36});37const { attachPingListener } = require('playwright/lib/utils/transport');38attachPingListener((message) => {39  console.log(message);40});41const { attachPingListener } = require('playwright/lib/utils/transport');42attachPingListener((message) => {43  console.log(message);44});45const { attachPingListener } = require('playwright/lib/utilsUsing AI Code Generation
1const playwright = require('playwright-internal');2const { attachPingListener } = playwright;3attachPingListener((ping) => {4  console.log(ping);5});6(async () => {7  const browser = await playwright.chromium.launch();8  const page = await browser.newPage();9  await page.screenshot({ path: 'example.png' });10  await browser.close();11})();12(async () => {13  const browser = await playwright.firefox.launch();14  const page = await browser.newPage();15  await page.screenshot({ path: 'example.png' });16  await browser.close();17})();18(async () => {19  const browser = await playwright.webkit.launch();20  const page = await browser.newPage();21  await page.screenshot({ path: 'example.png' });22  await browser.close();23})();24(async () => {25  const browser = await playwright.chromium.launch();26  const context = await browser.newContext();27  const page = await context.newPage();28  await page.screenshot({ path: 'example.png' });29  await browser.close();30})();31(async () => {32  const browser = await playwright.firefox.launch();33  const context = await browser.newContext();34  const page = await context.newPage();35  await page.screenshot({ path: 'example.png' });36  await browser.close();37})();38(async () => {39  const browser = await playwright.webkit.launch();40  const context = await browser.newContext();41  const page = await context.newPage();42  await page.screenshot({ path: 'example.png' });43  await browser.close();44})();45(async () => {46  const browser = await playwright.chromium.launch();47  const context = await browser.newContext();48  const page = await context.newPage();49  await page.screenshot({ path: 'example.png' });50  await browser.close();51})();Using AI Code Generation
1const { attachPingListener } = require('playwright-core/lib/server/browserType');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  attachPingListener(page, () => {7    console.log('PING!');8  });9  await browser.close();10})();11const puppeteer = require('puppeteer');12(async () => {13  const browser = await puppeteer.launch();14  const page = await browser.newPage();15  page.on('targetcreated', () => {16    console.log('PING!');17  });18  await browser.close();19})();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.
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