How to check if key exists in json object in jquery?

Admin   JAVASCRIPT   42  2020-08-12 18:47:09

When you require to check if key exists or not in json object in javascript. we can easily check jquery json object key exists or not using hasOwnProperty. jquery json provide several method for getting key value or check if key exists etc.

In this example we will use hasOwnProperty method of json object that will help to check if key exists or not in jquery.

if(myObject.hasOwnProperty('name')){

console.log('Key is exist in Object!');

}

hasOwnProperty return true if key is exists and return false if key is not exists on given javascript json. So let's see simple example that will help you how you can use.

Example:

<!DOCTYPE html>

<html>

<head>

<title>How to check if key exists in json object in jquery? - </title>

</head>

<body>

<script type="text/javascript">

var myObject = {'id': 1, 'name': 'Paresh', 'city': 'Rajkot'};

if(myObject.hasOwnProperty('name')){

console.log('Key is exist in Object!');

}else{

console.log('Key is not exist in Object!');

}

</script>

</body>

</html>

I hope it can help you....