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Inside this article we will see the concept i.e Remove special Characters from a String in JavaScript. Article contains the classified information about removing special characters from string values by using javascript regular expressions and/or methods. Tutorial is super easy to understand and implement it in your code as well.

If you are looking for a solution to remove special Characters from a String in JavaScript then this article will help you a lot for this.

Removing special characters from user input values before sending to database is very common client side validation that every web developer must apply to secure application.

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Let’s get started.

Remove Special Characters From String

Create index.html file in your localhost path. Open file and add this code into it.

//...

<script>

  var str = 'Hello !@#$%^Online &&Web *& Tutor?.';

  var noSpecialCharacters = str.replace(/[^a-zA-Z0-9 ]/g, '');

  console.log(noSpecialCharacters);

</script>

//...

Concept

Here,

To remove special characters from string values, we used regular expression.

var noSpecialCharacters = str.replace(/[^a-zA-Z0-9 ]/g, '');

This regular expression will remove all special characters which are not in the given set. This given set contains characters from a-z, A-Z, 0-9 and space.

Output

Alternative Method

Also, we have an alternative way to do this special characters replacement. We use a known regular expression i.e [^\w ]

The above regular expression auto generates the set of a-z, A-Z, 0-9, _ and space.

Open index.html and add this code.

//...

<script>

  var str = 'Hello !@#$%^Online &&Web *& Tutor?.';

  var noSpecialCharacters = str.replace(/[^\w ]/g, '');

  console.log(noSpecialCharacters);

</script>

//...

Concept

var noSpecialCharacters = str.replace(/[^\w ]/g, '');

Output

We hope this article helped you to learn Remove special Characters from a String in JavaScript in a very detailed way.

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