Top "Jsperf" questions

Prepend text to beginning of string

What is the fastest method, to add a new value at the beginning of a string?

javascript string performance concat jsperf

Javascript performance of Array.map

Just wrote up some test cases in jsperf to test the difference between named and anonymous functions while using Array.…

javascript performance jsperf

for loop vs forEach performance in javascript and credibility of jsperf results

I don't trust results from jsperf measuring performance of for loop vs forEach. At least for chrome and firefox on …

javascript performance jsperf

How does jsPerf work?

Today I visited jsPerf and now I am wondering… What is “ops/sec”? How many iterations does it do? On …

javascript performance benchmarking jsperf

Which JS benchmark site is correct?

I created a benchmark on both jsperf.com and jsben.ch, however, they're giving substantially different results. JSPerf: https://jsperf.…

javascript performance benchmarking jsperf

Fast and save way to remove the sign of a singed number in JavaScript

I want to remove the sign of a Number in JavaScript. Here are the test cases that I already examined …

javascript performance numbers signed jsperf