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193

Javascript: How to loop through every array's item every second

rated 0 times [ 200] [ 7] / answers: 1 / hits: 6914 / 7 Years ago, thu, september 21, 2017, 12:00:00

Lets say i have an array like this:

var arr = [0,1,2,3,4];

so i want to make a for loop that loops through the array and console logs every item, but i want it to console log separately every item and each item will be console logged a second after the previous item, how can i do this?

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lidialyrick

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1 Year ago

answered 7 Years ago louiseb · Accepted Answer

You can use an interval.
Here is an example:

var arr = [0,1,2,3,4];

var index = 0;

setInterval(function(){

    console.log(arr[index++ % arr.length]);

}, 1000)

The example above will loop through the array more then once. If you want to loop the array only once, you can stop the interval when all the elements were logged.

var arr = [0,1,2,3,4];

var index = 0;

var interval = setInterval(function(){

     console.log(arr[index++]);

     if(index == arr.length){

        clearInterval(interval);

     }

}, 1000)