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Underscore.js | _.bind() Function
  • Last Updated : 27 Apr, 2020

The _.bind() function is used to bind a function to an object. When the function is called, the value of this will be the object.

Syntax:

_.bind(function, object, *arguments)

Parameters: This function accepts three parameters as mentioned above and described below:

  • function: This parameter holds the function that need to be executed.
  • object: This parameter holds the object elements.
  • arguments: This parameter needs to add some symbols between the elements.

Return Value: It returns the value that bind a function to an object.

Example 1:



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<!DOCTYPE html>
<html>
  
<head>
    <script type="text/javascript" src=
    </script>
</head>
  
<body>
    <script type="text/javascript">
  
        var fun = function (Geeks) {
            return 'Company Name : ' + this.Company
                + '\nAddress : ' + this.Address
                + '\nContact : ' + this.Contact
        };
  
        fun = _.bind(fun, {
            Company: 'GeeksforGeeks',
            Address: 'Noida',
            Contact: '+91 9876543210'
        });
  
        console.log(fun());
    </script>
</body>
  
</html>

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Output:

Example 2:

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<!DOCTYPE html>
<html>
  
<head>
    <script type="text/javascript" src=
    </script>
</head>
  
<body>
    <script type="text/javascript">
        var obj = {
            Name: "GeeksforGeeks",
            Address: "Noida"
        };
  
        var fun = function (Geeks) {
            return 'Welcome to ' + this.Name
                + '\nAddress: ' + this.Address
        };
  
        fun = _.bind(fun, obj);
  
        console.log(fun());
    </script>
</body>
  
</html>

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Output:

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