JavaScript

How to replace number with string in JavaScript?

How to replace number with string in JavaScript?, someone asked me to explain?

In this article we will discuss replace number with string in javascript by using regular expression . It find the numbers and then replaced with strings which specified. It is achieved by two methods

1.    Using a regular expression literal

2.    Using keyword RegExp object

Using a regular expression literal:

<script type="text/javascript">

    var string = "my contact number is 9545554545. my age is27.";

   alert(string.replace(/\d+/g, "XXX"));

</script>

 

Input:

my contact number is 9545554545. my age is 27.

Output:

replace number with string using javascript

Using a keyword RegExp object:

<script type="text/javascript">

    var string = "pincode of my city 627011";

    var regexp = new RegExp("\\d+", "g");

   alert(string.replace(regexp, "XXX"));

</script>

Input:

pincode of my city 627011.

Output:

 

replace number with string using regular expression

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