sandpit/lib/helpers/performance.js

A playground for creative coding using JavaScript and the canvas element

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
/**
 * Performance shim, as jsdom doesn't ship with it -
 * primarily for use in the test suites
 * Credit: https://gist.github.com/paulirish/5438650
 * @private
 */

var performance = window.performance === undefined ? {} : window.performance;

if (performance && performance.now === undefined) {
  var nowOffset = Date.now();

  if (performance.timing && performance.timing.navigationStart) {
    nowOffset = performance.timing.navigationStart;
  }

  performance.now = function now() {
    return Date.now() - nowOffset;
  };
}

exports.performance = performance;