# How to apply bind() function in JavaScript?

JavascriptObject Oriented ProgrammingFront End Technology

## bind()

unlike apply() function, which gives value as output, Bind() function results in a function that has the ability to execute the code.

If we observe the following code, the apply() function has resulted in value output whereas bind() function resulted in function output.

### Example

Live Demo

<html>
<body>
<script>
var obj = {num : 10};
var mul = function(i, j, k){
return this.num * i*j*k;
}
var array = [6,3,4];
document.write(mul.bind(obj,array));
document.write("</br>");
document.write(mul.apply(obj,array));
</script>
</body>
</html>

### Output

function () { [native code] }
720

In general, when we pass arguments into any function, value output will be displayed. In the same way here, since a function is executed as output, if we try to pass arguments into that function then the value output will be executed.

### Example

In the following example, the output function is assigned to a variable called "round" and arguments were passed into that variable so as to get value output instead of function output.

Live Demo

<html>
<body>
<script>
var obj = {num : 10};
var mul = function(i, j, k){
return this.num * i*j*k;
}
var array = [6,3,4]
var round = mul.bind(obj);
document.write(round(6,3,4));
document.write("</br>");
document.write(mul.apply(obj,array));
</script>
</body>
</html>

### Output

720
720
Published on 01-Jul-2019 13:21:14