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moment-cache

v0.1.3

Published

Simple utility to cache moment.js instances.

Downloads

72

Readme

moment-cache

Moment-cache is a tiny tool to speed up your moment.js calls.

During the app lifecycle we can call moment oftentimes. Every call is time. Time is performance. This tool will increase performance of your app by caching moment.js instances.

Why?


  import moment from 'moment';
  import cache  from 'moment-cache';

  const dateString = '2016-08-24';
  const momentCalls = 99999;

  const check = (instance) => {
    let i = 0;
    const start = new Date;
    while (i <= momentCalls) {
      instance(dateString);
      i++;
    }
    return new Date - start;
  }

  console.log(check(moment));    // ~1588 ms
  console.log(check(cache));     // ~35 ms

Syntax:

Arguments:

  • date: See moment/parse.

  • format: See moment/format.

  • clone (by default - true): set false if you are not going to change instance in future. Will increase performance, but any object changes will affect cached result. See moment/clone.


  import cache from 'moment-cache'; // or moment().cache
  const myDate = '06-28-2016';
  const format = 'MM-DD-YYYY';
  const date = cache(myDate, format); // moment.js cached instance
  const anotherDate = cache(myDate, format); // rapidly retrieving previously processed result from the cache

Methods:

updateStorage: change cache destination.

Arguments:
  • storage: object where cache data is stored. By default - covert object behind the scenes.
  import cachable from 'moment-cache';
  const myStorage = {};
  cachable.updateStorage(myStorage);
  const date = cachable('2016-08-23');
  console.log(myStorage); // {1471899600000: Moment}