Underscore.js _.bind() Function

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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:

<!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 fun = function (Geeks) { 
            return 'Company Name : ' + this.Company 
                + '\nAddress : ' + this.Address 
                + '\nContact : ' + this.Contact 
        }; 
  
        fun = _.bind(fun, { 
            Company: 'zambiatek', 
            Address: 'Noida', 
            Contact: '+91 9876543210' 
        }); 
  
        console.log(fun()); 
    </script> 
</body> 
  
</html> 

Output:

Example 2:

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

Output:

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