30-seconds-of-code/snippets/timeTaken.md

title, tags, cover, firstSeen, lastUpdated

title	tags	cover	firstSeen	lastUpdated
Time taken by function	function	shelf-plant	2017-12-17T17:55:51+02:00	2020-10-22T20:24:30+03:00

Measures the time it takes for a function to execute.

• Use console.time() and console.timeEnd() to measure the difference between the start and end times to determine how long the callback took to execute.

const timeTaken = callback => {
  console.time('timeTaken');
  const r = callback();
  console.timeEnd('timeTaken');
  return r;
};

timeTaken(() => Math.pow(2, 10)); // 1024, (logged): timeTaken: 0.02099609375ms