Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use IsReadableStreamDefaultController method in wpt

Best JavaScript code snippet using wpt

ReadableStreamDefaultController.js

Source:ReadableStreamDefaultController.js

1/*2 * Copyright (C) 2015 Canon Inc.3 *4 * Redistribution and use in source and binary forms, with or without5 * modification, are permitted provided that the following conditions6 * are met:7 * 1. Redistributions of source code must retain the above copyright8 *    notice, this list of conditions and the following disclaimer.9 * 2. Redistributions in binary form must reproduce the above copyright10 *    notice, this list of conditions and the following disclaimer in the11 *    documentation and/or other materials provided with the distribution.12 *13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.24 */25// @conditional=ENABLE(STREAMS_API)26function enqueue(chunk)27{28    "use strict";29    if (!@isReadableStreamDefaultController(this))30        throw @makeThisTypeError("ReadableStreamDefaultController", "enqueue");31    if (!@readableStreamDefaultControllerCanCloseOrEnqueue(this))32        @throwTypeError("ReadableStreamDefaultController is not in a state where chunk can be enqueued");33    return @readableStreamDefaultControllerEnqueue(this, chunk);34}35function error(error)36{37    "use strict";38    if (!@isReadableStreamDefaultController(this))39        throw @makeThisTypeError("ReadableStreamDefaultController", "error");40    @readableStreamDefaultControllerError(this, error);41}42function close()43{44    "use strict";45    if (!@isReadableStreamDefaultController(this))46        throw @makeThisTypeError("ReadableStreamDefaultController", "close");47    if (!@readableStreamDefaultControllerCanCloseOrEnqueue(this))48        @throwTypeError("ReadableStreamDefaultController is not in a state where it can be closed");49    @readableStreamDefaultControllerClose(this);50}51@getter52function desiredSize()53{54    "use strict";55    if (!@isReadableStreamDefaultController(this))56        throw @makeGetterTypeError("ReadableStreamDefaultController", "desiredSize");57    return @readableStreamDefaultControllerGetDesiredSize(this);...

Using AI Code Generation

1const assert = require('assert');2const { ReadableStream, isReadableStreamDefaultController } = require('stream/web');3const readableStream = new ReadableStream({4  start(controller) {5    assert(isReadableStreamDefaultController(controller));6  }7});8const {9} = require('internal/webstreams/readablestream');10function IsReadableStreamDefaultController(x) {11  if (!typeIsObject(x)) {12    return false;13  }14  if (!ObjectPrototypeHasOwnProperty(x, kState)) {15    return false;16  }17  return x[kState] instanceof ReadableStreamDefaultController;18}19const {20} = require('internal/webstreams/util');21const {22} = require('internal/webstreams/readablestreamdefaultcontroller');23function setupReadableStreamDefaultController(24  sizeAlgorithm) {25  assert(stream[kState].controller === undefined);26  controller[kState] = {27  };28  stream[kState].controller = controller;29  const startResult = startAlgorithm();30  PromisePrototypeThen(31    PromiseResolve(startResult),32    () => {33      const desiredSize = readableStreamDefaultControllerGetDesiredSize(controller);34      if (desiredSize > 0)35        readableStreamDefaultControllerCallPullIfNeeded(controller);36    },37    (r) => readableStreamDefaultControllerError(controller, r));38}39class ReadableStreamDefaultController {40  constructor() {41    throw new ERR_ILLEGAL_CONSTRUCTOR();42  }43  [kInspect](depth, options) {44    return customInspect(depth, options, 'ReadableStreamDefaultController', {45    });

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    assert_true(IsReadableStreamDefaultController(controller));4  }5});6var rs = new ReadableStream();7var reader = rs.getReader();8assert_true(IsReadableStreamDefaultReader(reader));9var rs = new ReadableStream({10});11var reader = rs.getReader({ mode: 'byob' });12assert_true(IsReadableStreamBYOBReader(reader));13var rs = new ReadableStream();14var reader = rs.getReader();15var controller = reader.releaseLock();16assert_true(IsReadableStreamDefaultController(controller));17var rs = new ReadableStream({18  pull(controller) {19    var view = controller.byobRequest.view;20    assert_true(IsReadableStreamBYOBRequest(controller.byobRequest));21    controller.close();22  }23});24var reader = rs.getReader({ mode: 'byob' });25var view = new Uint8Array(1);26reader.read(view).then(27    result => assert_true(result.done, 'the stream should be closed'),28    e => assert_unreached(e));29var rs = new ReadableStream({30  start(controller) {31    assert_true(IsReadableStreamBYOBRequest(controller.byobRequest));32  }33});34var reader = rs.getReader({ mode: 'byob' });35var view = new Uint8Array(1);36reader.read(view).then(37    result => assert_unreached('the stream should not be closed'),38    e => assert_unreached(e));39var rs = new ReadableStream({40  start(controller) {41    assert_true(IsReadableStreamBYOBRequest(controller.byobRequest));42  }43});44var reader = rs.getReader({ mode: 'byob' });45var view = new Uint8Array(1);46reader.read(view).then(47    result => assert_unreached('the stream should not be closed'),48    e => assert_unreached(e));

Using AI Code Generation

1const assert = require('assert');2const { ReadableStream, CountQueuingStrategy } = require('stream/web');3const { IsReadableStreamDefaultController } = require('stream/web');4const readableStream = new ReadableStream({5  start(controller) {6    assert.strictEqual(IsReadableStreamDefaultController(controller), true);7  }8});9assert.strictEqual(IsReadableStreamDefaultController(readableStream), false);10assert.throws(() => IsReadableStreamDefaultController(undefined), {11});12assert.throws(() => IsReadableStreamDefaultController(null), {13});14assert.throws(() => IsReadableStreamDefaultController(''), {15});16assert.throws(() => IsReadableStreamDefaultController(1), {17});18assert.throws(() => IsReadableStreamDefaultController(true), {19});20assert.throws(() => IsReadableStreamDefaultController({}), {21});22assert.throws(() => IsReadableStreamDefaultController([]), {23});24assert.throws(() => IsReadableStreamDefaultController(() => {}), {25});26assert.throws(() => IsReadableStreamDefaultController(Symbol()), {27});28const assert = require('assert');29const { ReadableStream, CountQueuingStrategy } = require('stream/web');30const { IsReadableStreamDefaultReader } = require('stream/web');31const readableStream = new ReadableStream({32  start(controller) {33    assert.strictEqual(IsReadableStreamDefaultReader(controller), false);34  }35});36const reader = readableStream.getReader();37assert.strictEqual(IsReadableStreamDefaultReader(reader), true);38assert.throws(() => IsReadableStreamDefaultReader(undefined), {39});40assert.throws(() => IsReadableStreamDefaultReader(null), {41});42assert.throws(() => IsReadableStreamDefaultReader(''), {43});44assert.throws(() => IsReadableStreamDefaultReader(1), {45});46assert.throws(() => IsReadableStreamDefaultReader(true), {

Using AI Code Generation

1const { ReadableStream, CountQueuingStrategy } = require('stream/web');2const { IsReadableStreamDefaultController } = require('stream/web');3const rs = new ReadableStream({4  start(controller) {5    console.log(IsReadableStreamDefaultController(controller));6  }7});8const { ReadableStream, CountQueuingStrategy } = require('stream/web');9const { ReadableStreamBYOBReader } = require('stream/web');10const rs = new ReadableStream({11});12const reader = new ReadableStreamBYOBReader(rs);13const { ReadableStream, CountQueuingStrategy } = require('stream/web');14const { ReadableStreamBYOBRequest } = require('stream/web');15const rs = new ReadableStream({16  pull(controller) {17    const view = new Uint8Array(controller.byobRequest.view);18    view[0] = 0x61;19    view[1] = 0x62;20    view[2] = 0x63;21    controller.byobRequest.respond(3);22  }23});24const reader = rs.getReader({ mode: 'byob' });25reader.read(new Uint8Array(3)).then(({ value, done }) => {26  console.log(value);27  console.log(done);28});29const { ReadableStream, CountQueuingStrategy } = require('stream/web');30const { ReadableStreamDefaultController } = require('stream/web');31const rs = new ReadableStream({32  start(controller) {33    console.log(ReadableStreamDefaultController);34  }35});36const { ReadableStream, CountQueuingStrategy } = require('stream/web');37const { ReadableStreamDefaultReader } = require('stream/web');38const rs = new ReadableStream({39  start(controller) {40    console.log(ReadableStreamDefaultReader);41  }42});

Using AI Code Generation

1const { IsReadableStreamDefaultController } = require("stream/web");2const { ReadableStreamDefaultController } = require("stream/web");3const { ReadableStream } = require("stream/web");4const { WritableStream } = require("stream/web");5const { ReadableByteStreamController } = require("stream/web");6const { ReadableStreamBYOBReader } = require("stream/web");7const { ReadableStreamBYOBRequest } = require("stream/web");8const { ReadableStreamDefaultReader } = require("stream/web");9const { WritableStreamDefaultWriter } = require("stream/web");10const { WritableStreamDefaultController } = require("stream/web");11const { ByteLengthQueuingStrategy } = require("stream/web");12const { CountQueuingStrategy } = require("stream/web");13const readableStream = new ReadableStream({14  start(controller) {15  },16  pull(controller) {17  },18  cancel(reason) {19  }20});21const reader = readableStream.getReader();22const readResult = reader.read();23if (readResult.done) {24  console.log("The stream was already closed.");25} else {26  console.log("The stream has more data.");27}28const writableStream = new WritableStream({29  start(controller) {30  },31  write(chunk, controller) {32  },33  close(controller) {34  },35  abort(reason) {36  }37});38const writer = writableStream.getWriter();39writer.write("a");40writer.write("b");41writer.write("c");42writer.close();43const { TransformStream } = require("stream/web");44const ts = new TransformStream({45  start(controller) {46    console.log("[start]");47  },48  transform(chunk, controller) {49    console.log("[transform]", chunk);50    controller.enqueue(chunk);51  },52  flush(controller) {53    console.log("[flush]");54    controller.enqueue("!");55  },56  async shutdown() {

Using AI Code Generation

1const assert = require('assert');2const { ReadableStream, CountQueuingStrategy } = require('stream/web');3const rs = new ReadableStream({4    start(c) {5        assert(IsReadableStreamDefaultController(c));6    }7});8test(() => {9  const rs = new ReadableStream();10  assert(IsReadableStreamDefaultController(rs._controller));11}, 'ReadableStream instances should have a [[controller]] internal slot');

Using AI Code Generation

1const { IsReadableStreamDefaultController } = require("stream/web");2const { ReadableStream } = require("stream");3const rs = new ReadableStream();4const controller = rs.getReader().readableStreamController;5console.log(IsReadableStreamDefaultController(controller));6IsReadableStreamDefaultController ( controller )7if controller is a ReadableStreamDefaultController object; otherwise,8const { IsReadableStreamDefaultController } = require("stream/web");9const { ReadableStream } = require("stream");10const rs = new ReadableStream();11const controller = rs.getReader().readableStreamController;12console.log(IsReadableStreamDefaultController(controller));

Using AI Code Generation

1const { IsReadableStreamDefaultController } = require("web-streams-polyfill/ponyfill");2const { IsReadableStreamDefaultController } = require("web-streams-polyfill");3const { IsReadableStreamDefaultController } = require("web-streams-polyfill/ponyfill");4const { IsReadableStreamDefaultController } = require("web-streams-polyfill");5const controller = new ReadableStreamDefaultController();6const { ReadableStreamDefaultControllerClose } = require("web-streams-polyfill/ponyfill");7const { ReadableStreamDefaultControllerClose } = require("web-streams-polyfill");8const rs = new ReadableStream({9  pull(controller) {10    controller.enqueue("a");11    controller.enqueue("b");12    controller.enqueue("c");13    ReadableStreamDefaultControllerClose(controller);14  },15});

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.