Train Now

Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.

Description

Don't use Array.forEach, use for() instead

Array.ForEach is about 95% slower than for() in for each for Arrays in JavaScript.

Ad
Puzzles
Algorithms
Mathematics
Strings
Arrays
Fundamentals