JavaScript forEach – How to Loop Through an Array in JS | javascript foreach object
TheJavaScriptforEachmethodisoneoftheseveralwaystoloopthrougharrays.Eachmethodhasdifferentfeatures,anditisuptoyou,dependingonwhatyouredoing,todecidewhichonetouse.Inthispost,wearegoingtotakeacloserlookattheJavaScriptforEachmethod.Consideringthatwehavethefollowingarraybelow:constnumbers=[1,2,3,4,5];Usingthetraditional"forloop"toloopthroughthearraywouldbelikethis:for(i=0;i
The JavaScript forEach method is one of the several ways to loop through arrays. Each method has different features, and it is up to you, depending on what youre doing, to decide which one to use.
In this post, we are going to take a closer look at the JavaScript forEach method.
Considering that we have the following array below:
const numbers = [1, 2, 3, 4, 5];Using the traditional "for loop" to loop through the array would be like this:
for (i = 0; i < numbers.length; i++) { console.log(numbers[i]); } What makes the forEach( ) method different?The forEach method is also used to loop through arrays, but it uses a function differently than the classic "for loop".
The forEach method passes a callback function[1] for each element of an array together with the following parameters:
Current Value (required) - The value of the current array elementIndex (optional) - The current elements index numberArray (optional) - The array object to which the ...