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How to use chunkByte method in wpt

Best JavaScript code snippet using wpt

upload.ts

Source:upload.ts

1import SparkMD5 from 'spark-md5'2import hashWorker from './hash.worker.js?worker'3export const DEFAULT_CHUNK_SIZE = 2 * 1024 * 10244export function createFileChunk(file: File, chunkSize = DEFAULT_CHUNK_SIZE) {5  const size = file.size6  const fileChunkList: Blob[] = []7  let cur = 08  while (cur < size) {9    fileChunkList.push(file.slice(cur, cur + chunkSize))10    cur += chunkSize11  }12  return fileChunkList13}14export function createFileSampleChunk(file: File, chunkSize = DEFAULT_CHUNK_SIZE, chunkByte = 2) {15  const size = file.size16  const fileChunkList: Blob[] = []17  let cur = chunkSize18  fileChunkList.push(file.slice(0, chunkSize))19  while (cur < size) {20    if (cur + chunkSize >= size) {21      fileChunkList.push(file.slice(cur, size))22    } else {23      const mid = cur + chunkSize / chunkByte24      const end = cur + chunkSize25      fileChunkList.push(file.slice(cur, cur + chunkByte))26      fileChunkList.push(file.slice(mid, mid + chunkByte))27      fileChunkList.push(file.slice(end - chunkByte, end))28    }29    cur += chunkSize30  }31  return fileChunkList32}33export function createFileHash(fileChunkList) {34  return new Promise(async (resolve) => {35    const spark = new SparkMD5.ArrayBuffer()36    const buffers = await Promise.all(37      fileChunkList.map(38        (chunk) =>39          new Promise((resolve) => {40            const reader = new FileReader()41            reader.readAsArrayBuffer(chunk)42            reader.onload = (event) => {43              resolve(event.target?.result)44            }45          }),46      ),47    )48    buffers.forEach((buffer) => spark.append(buffer))49    resolve(spark.end())50  })51}52export function createFileHashInWorker(fileChunkList) {53  return new Promise((resolve) => {54    const worker = new hashWorker()55    worker.postMessage({ fileChunkList })56    worker.onmessage = (e) => {57      const { hash } = e.data58      // console.log(percentage, hash)59      hash && resolve(hash)60    }61  })62}63export function createFileMd5(file: File, chunkSize = DEFAULT_CHUNK_SIZE) {64  return new Promise((resolve, reject) => {65    const blobSlice = File.prototype.slice || File.prototype.mozSlice || File.prototype.webkitSlice66    const chunks = Math.ceil(file.size / chunkSize)67    const spark = new SparkMD5.ArrayBuffer()68    const fileReader = new FileReader()69    let currentChunk = 070    fileReader.onload = (e) => {71      spark.append(e.target?.result)72      currentChunk++73      if (currentChunk < chunks) {74        loadNext()75      } else {76        const hash = spark.end()77        resolve(hash)78      }79    }80    fileReader.onerror = (err) => {81      reject(err)82    }83    function loadNext() {84      const start = currentChunk * chunkSize85      const end = start + chunkSize >= file.size ? file.size : start + chunkSize86      fileReader.readAsArrayBuffer(blobSlice.call(file, start, end))87    }88    loadNext()89  })...

fetchApi_blob.js

Source:fetchApi_blob.js

1// async function test() {2//     const response = await fetch("https://picsum.photos/200/300");3//     return  response.blob();4// }5// test().then(data => {6//     console.log(data);7//     let blob = data;8//     let url = URL.createObjectURL(blob);9//     let img = document.createElement("img");10//     img.src = url;11//     document.body.appendChild(img);12//     console.log(url);13// });14function fetchImage(url) {15    let req = new XMLHttpRequest();16    req.open("GET", url, true);17    req.responseType = "arraybuffer";18    req.send();19    req.onload = function (e) {20        console.log(this.response);21        console.log(new Int8Array(this.response));22        let chunkByte = new Int8Array(this.response).subarray(0, 1000); //read some chunk of bytes of the image23        console.log(chunkByte);24        let blob = new Blob([chunkByte], { type: "image/jpeg" });25        console.log(blob.stream().getReader().read().then(data=>console.log(data)));26        let url = URL.createObjectURL(blob);27        let img = document.createElement("img");28        img.src = url;29        document.body.appendChild(img);30        console.log(url);31    }32    req.onerror = function (e) {33        console.log(e.tareget.error);34    }35}...

sized-chunk-transformer.ts

Source:sized-chunk-transformer.ts

1/**2 * ChunkerTransformStream, a transform stream to take arbitrary chunk sizes and make them consistent3 * https://codereview.stackexchange.com/q/57492/1857094 */5import stream from 'stream'6/**7 * TCP streaming workload tuning8 *  https://www.ibm.com/docs/en/aix/7.2?topic=tuning-tcp-streaming-workload9 */10const DEFAULT_CHUNK_BYTE = 256 * 1024 // 256 KB11/**12 * @param chunkByte The size of the chunks to be created13 * @returns14 */15function sizedChunkTransformer (chunkByte = DEFAULT_CHUNK_BYTE) {16  let buffer = Buffer.from([])17  const transform: stream.TransformOptions['transform'] = function (chunk, _, done) {18    buffer = Buffer.concat([buffer, chunk])19    while (buffer.length >= chunkByte) {20      this.push(buffer.slice(0, chunkByte))21      buffer = buffer.slice(chunkByte)22    }23    done()24  }25  const flush: stream.TransformOptions['flush'] = function (done) {26    if (buffer.length) {27      this.push(buffer)28    }29    done()30  }31  const chunker = new stream.Transform({32    flush,33    objectMode: true,34    transform,35  })36  return chunker37}38export {39  sizedChunkTransformer,...

Using AI Code Generation

1var wptools = require('wptools');2var wiki = wptools.page('Albert Einstein');3wiki.get(function(err, resp) {4  if (err) {5    console.log('error:', err);6  } else {7    console.log('data:', resp);8  }9});10var wptools = require('wptools');11var wiki = wptools.page('Albert Einstein');12wiki.get(function(err, resp) {13  if (err) {14    console.log('error:', err);15  } else {16    console.log('data:', resp);17  }18});19var wptools = require('wptools');20var wiki = wptools.page('Albert Einstein');21wiki.get(function(err, resp) {22  if (err) {23    console.log('error:', err);24  } else {25    console.log('data:', resp);26  }27});28var wptools = require('wptools');29var wiki = wptools.page('Albert Einstein');30wiki.get(function(err, resp) {31  if (err) {32    console.log('error:', err);33  } else {34    console.log('data:', resp);35  }36});37var wptools = require('wptools');38var wiki = wptools.page('Albert Einstein');39wiki.get(function(err, resp) {40  if (err) {41    console.log('error:', err);42  } else {43    console.log('data:', resp);44  }45});46var wptools = require('wptools');47var wiki = wptools.page('Albert Einstein');48wiki.get(function(err, resp) {49  if (err) {50    console.log('error:', err);51  } else {52    console.log('data:', resp);53  }54});55var wptools = require('wptools');56var wiki = wptools.page('Albert Einstein');57wiki.get(function(err, resp) {58  if (err)

Using AI Code Generation

1var wptools = require('wptools');2wptools.chunkByte('test', 10, function(err, data) {3  console.log(data);4});5var wptools = require('wptools');6wptools.chunkByte('test', 10, function(err, data) {7  console.log(data);8});9var wptools = require('wptools');10wptools.chunkByte('test', 10, function(err, data) {11  console.log(data);12});13var wptools = require('wptools');14wptools.chunkByte('test', 10, function(err, data) {15  console.log(data);16});17var wptools = require('wptools');18wptools.chunkByte('test', 10, function(err, data) {19  console.log(data);20});

Using AI Code Generation

1const wptools = require('wptools');2const fs = require('fs');3const path = require('path');4const file = fs.createWriteStream(path.join(__dirname, 'test.file'));5const wiki = wptools.page('Barack Obama');6wiki.get().then(function (result) {7  wiki.chunkByte(1024, function (chunk) {8    file.write(chunk);9  });10});11<link rel="stylesheet" href="/w/load.php?debug=false&amp;lang=en&amp;modules=mediawiki.legacy.commonPrint%2Cshared%7Cmediawiki.skinning.interface%7Cmediawiki.ui.button%7Cskins.vector.styles&amp;only=styles&amp;skin=vector"/>12<link rel="stylesheet" href="/w/load.php?debug=false&amp;lang=en&amp;modules=site.styles&amp;only=styles&amp;skin=vector"/>13<link rel="stylesheet" href="/w/load.php?debug=false&amp;lang=en&amp;modules=mediawiki.legacy.ie%7Cmediawiki.skinning.content.parsoid%7Cmediawiki.skinning.interface%7Cmediawiki.skinning.content.externallinks%7Cskins.vector.styles&amp;only=styles&amp;skin=vector"/>14<script>document.documentElement.className = document.documentElement.className.replace( /(^|\s)client-nojs(\s|$)/, '$1client-js$2' );</script>15<script src="/w/load.php?debug=false&amp;lang=en&amp;modules=startup&amp;only=scripts&amp;skin=vector"></script>16<script src="/w/load.php?debug=false&amp;lang=en&amp;modules=site&amp;only=scripts&amp;skin=vector"></script>

Using AI Code Generation

1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3var options = {4};5    if (err) return console.error(err);6    var testId = data.data.testId;7    wpt.getTestResults(testId, function(err, data) {8        if (err) return console.error(err);9        var results = data.data;10        var median = results.median.firstView;

Using AI Code Generation

1var wpt = require('webpage').create();2var chunkNumber = 0;3var chunkSize = 1024*1024;4var range = wpt.chunkByte(url, chunkNumber, chunkSize);5console.log(range);6console.log(wpt.download(url, range));7wpt.close();

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