Find an element in an array JavaScript

Array.find helps us check in an element is present in an array.

var a=[1,2,3,4,5,6,7,8,9];

function findItem(ele) {
return ele === num;
}

var num = 8;
var numberFound = a.find(findItem);

Then you compare num and numberFound.

We can not return a boolean value from this function.
It always returns the number if its available or undefined.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s