Loop through an array in JavaScript

Question

In Java you can use a for loop to traverse objects in an array as follows:

String[] myStringArray = {"Hello", "World"};
for (String s : myStringArray)
{
    // Do something
}

Can you do the same in JavaScript?

Ok, so I'm a bit confused, it's ok to use the enhanced for loop when you are accessing the objects? And use a sequential one for filling one? Is this correct? — Mark Szymanski, Jun 10 '10 at 0:15
no, it's really simple, array objects have numeric indexes, so you want to iterate over those indexes in the numeric order, a sequential loop ensures that, the enhanced for-in loop enumerates object properties, without an specific order, and it also enumerates inherited properties... for iterating over arrays sequential loops are always recommended... — CMS, Jun 10 '10 at 0:38
jsben.ch/#/Q9oD5 <= Here a benchmark of a bunch of solutions for looping through arrays — EscapeNetscape, Nov 3 at 19:45

Peter Mortensen · Answer 1 · 2016-07-02 19:38:09Z

up vote 2 down vote

It is better to use a sequential for loop:

for (var i = 0; i < myStringArray.length; i++) {
    // Do something
}

Peter Mortensen

10.4k1372108

answered Mar 31 at 11:28

user6139250

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UJS · Answer 2 · 2016-11-15 13:18:27Z

up vote 0 down vote

each loop of jQuery will be the Good Option as ,it's an Array

var myStringArray = ["Hello", "World"];
$.each(myStringArray,function(e){ console.log(myStringArray[e]) });

answered Nov 15 at 13:18

UJS

275

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