Underscore.js | _.has() Function

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The _.has() function is used to check whether the given object contains the given key or not.

Syntax:

_.has(object, key)

Parameters: This function accept two parameters as mentioned above and described below:

object: It contains the object element.
key: It contains the key that need to be check in the given object.

Return Value: It returns a Boolean value True if the key is present in the object and False otherwise.

Below examples illustrate the _.has() function in Underscore.js:

Example 1:

HTML

<!DOCTYPE html>
<html>
 
<head>
    <script type="text/javascript" src=
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js">
    </script>
</head>
 
<body>
    <script type="text/javascript">
 
        var hasFn = _.has({
            Name: 'Ashok',
            Age: 32,
            Email: 'ashok@gfg.com'
        }, 'Age');
 
        console.log(hasFn);
    </script>
</body>
 
</html>

Output:

Example 2:

HTML

<!DOCTYPE html>
<html>
 
<head>
    <script type="text/javascript" src=
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js">
    </script>
</head>
 
<body>
    <script type="text/javascript">
 
        var info = {
            Company: 'zambiatek',
            Address: 'Noida',
            Contact: '+91 9876543210'
        };
 
        console.log(_.has(info, 'Company'));
        console.log(_.has(info, 'Cont'));
    </script>
</body>
 
</html>