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Array.fill
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fill
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Best JavaScript code snippets using builtins.Array.fill(Showing top 15 results out of 3,213)

origin: siimon/prom-client

constructor(maxAgeSeconds, ageBuckets) {
    this.maxAgeSeconds = maxAgeSeconds || 0;
    this.ageBuckets = ageBuckets || 0;

    this.shouldRotate = maxAgeSeconds && ageBuckets;

    this.ringBuffer = Array(ageBuckets).fill(new TDigest());
    this.currentBuffer = 0;

    this.lastRotateTimestampMillis = Date.now();
    this.durationBetweenRotatesMillis =
      (maxAgeSeconds * 1000) / ageBuckets || Infinity;
  }
origin: moleculerjs/moleculer

(function() {
  const mw1 = {
    localAction: handler => ctx => handler(ctx).then(res => res)
  };

  const broker = createBroker({
    middlewares: Array(5).fill(mw1)
  });

  bench2.add("5 middlewares", done => {
    return broker.call("users.empty").then(done);
  });
})();
origin: tulios/kafkajs

const sendMessage = () => {
 return producer
  .send({
   topic,
   compression: CompressionTypes.GZIP,
   messages: Array(getRandomNumber())
    .fill()
    .map(_ => createMessage(getRandomNumber())),
  })
  .then(console.log)
  .catch(e => console.error(`[example/producer] ${e.message}`, e))
}
origin: tulios/kafkajs

Array(totalRandomTopics)
 .fill()
 .forEach(() => {
  createTopic(kafka1ContainerId, `test-topic-${secureRandom()}`)
 })
origin: enquirer/enquirer

constructor(options = {}) {
  super(options);
  this.widths = [].concat(options.messageWidth || 50);
  this.align = [].concat(options.align || 'left');
  this.linebreak = options.linebreak || false;
  this.edgeLength = options.edgeLength || 3;
  this.newline = options.newline || '\n   ';
  let start = options.startNumber || 1;
  if (typeof this.scale === 'number') {
   this.scaleKey = false;
   this.scale = Array(this.scale).fill(0).map((v, i) => ({ name: i + start }));
  }
 }
origin: gpujs/gpu.js

test('getDimensions Array of 6, padded', () => {
 assert.deepEqual(Array.from(utils.getDimensions(new Array(6).fill(1), true)), [6,1,1]);
});
origin: princejwesley/Mancy

generateColumnData(source) {
  let size = _.reduce(source, (o, arr) => {
   return Math.max(o, arr.length);
  }, 0);
  let range = new Array(size).fill(0);
  return _.map(source, (v, k) => ([k].concat(v).concat(range)).slice(0, size + 1));
 }
origin: keystonejs/keystone

Array(50)
 .fill()
 .map((_, i) => ({ data: { name: `test${String(i).padStart(2, '0')}`, age: 10 * i } }))
origin: asciidwango/js-primer

const doTask = () => {
  const newArray = new Array(10e6).fill(0);
  console.log(`${newArray.length}コの配列を0で初期化しました`);
}
origin: moleculerjs/moleculer

(function() {
  const mw = {
    localAction: handler => ctx => handler(ctx).then(res => res)
  };

  // Add 10 middlewares
  const broker = new ServiceBroker({ logger: false, middlewares: Array(10).fill(mw) });
  broker.loadService(__dirname + "/../user.service");
  broker.start();

  bench.add("With 10 middlewares", done => {
    return broker.call("users.find").then(done);
  });
})();
origin: Aaaaaaaty/blog

//控制帧数量
  sliceNum.fill(0).forEach(function(item, i) {
    _.imgAnimateDataObj[i] = []
  })
origin: tulios/kafkajs

const generateMessages = options => {
 const { prefix, number = 100 } = options || {}
 const prefixOrEmpty = prefix ? `-${prefix}` : ''

 return Array(number)
  .fill()
  .map((v, i) => {
   const value = secureRandom()
   return {
    key: `key${prefixOrEmpty}-${i}-${value}`,
    value: `value${prefixOrEmpty}-${i}-${value}`,
   }
  })
}
origin: tulios/kafkajs

const sendMessage = () => {
 return producer
  .send({
   topic,
   compression: CompressionTypes.GZIP,
   messages: Array(getRandomNumber())
    .fill(0)
    .map(_ => createMessage(getRandomNumber())),
  })
  .then(console.log)
  .catch(console.error)
}
origin: keystonejs/keystone

const range = N =>
 Array(N)
  .fill()
  .map((_, i) => i)
origin: sindresorhus/on-change

const buildArray = length => new Array(length)
  .fill(0)
  .map((value, index) => ({a: index}))
builtins(MDN)Arrayfill

JSDoc

Returns the this object after filling the section identified by start and end with value

Most used builtins functions

  • Console.log
  • Console.error
  • Promise.then
    Attaches callbacks for the resolution and/or rejection of the Promise.
  • Promise.catch
    Attaches a callback for only the rejection of the Promise.
  • Array.push
    Appends new elements to an array, and returns the new length of the array.
  • Array.length,
  • Array.map,
  • String.indexOf,
  • fetch,
  • Window.location,
  • Window.addEventListener,
  • ObjectConstructor.keys,
  • Array.forEach,
  • Location.reload,
  • Response.status,
  • Navigator.serviceWorker,
  • ServiceWorkerContainer.register,
  • ServiceWorkerRegistration.installing,
  • ServiceWorkerContainer.controller

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