jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.

jsperf.com URLs are mirrored at the same path, e.g:

https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

foreachvfilter

Benchmark created on August 30, 2023

Setup

const categoryProducts = [
  { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
    { name: 'Product 1', soldOut: false },
  { name: 'Product 2', soldOut: true },
  { name: 'Product 3', soldOut: false },
  { name: 'Product 4', soldOut: true },
  
];

Test runner

Ready to run.

Test Ops/sec

foreach

Testing in
Test	Ops/sec
foreach	`const oosProducts = []; const inStockProducts = []; categoryProducts.forEach((product) => product.soldOut ? oosProducts.push(product) : inStockProducts.push(product) ); const finalProducts = [...inStockProducts, ...oosProducts];`	ready
filter	`const inStockProducts = categoryProducts.filter(product => !product.soldOut); const oosProducts = categoryProducts.filter(product => product.soldOut); const finalProducts = inStockProducts.concat(oosProducts);`	ready
for of	`const oosProducts = []; const inStockProducts = []; for (const product of categoryProducts) { if (product.soldOut) { oosProducts.push(product); } else { inStockProducts.push(product); } } const finalProducts = inStockProducts.concat(oosProducts);`	ready

const oosProducts = [];
const inStockProducts = [];
                                    categoryProducts.forEach((product) =>
                                        product.soldOut ? oosProducts.push(product) : inStockProducts.push(product)
                                    );
const finalProducts = [...inStockProducts, ...oosProducts];

ready

filter

const inStockProducts = categoryProducts.filter(product => !product.soldOut);
const oosProducts = categoryProducts.filter(product => product.soldOut);

const finalProducts = inStockProducts.concat(oosProducts);

ready

for of

const oosProducts = [];
const inStockProducts = [];

for (const product of categoryProducts) {
  if (product.soldOut) {
    oosProducts.push(product);
  } else {
    inStockProducts.push(product);
  }
}

const finalProducts = inStockProducts.concat(oosProducts);

ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on August 30, 2023