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JavaScript remove special characters

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You can use the Regular expression in replace() method to remove special characters in JavaScript.

var desired = stringToReplace.replace(/[^\w\s]/gi, '')

The caret (^) character is the negation of the set [...], gi say global and case-insensitive (the latter is a bit redundant but I wanted to mention it) and the safelist in this example is digits, word characters, underscores (\w) and whitespace (\s).

JavaScript removes special characters

Simpe example code it will remove only special char (not whitsapce) from string.

<!DOCTYPE html>
    var str = "Hello^# World/ &*#special -+characters!~";
    var res = str.replace(/[^a-zA-Z ]/g, ""); 



JavaScript remove special characters

More code

//You can do it specifying the characters you want to remove:
string = string.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, '');

//Alternatively, to change all characters except numbers and letters, try:
string = string.replace(/[^a-zA-Z0-9]/g, '');

Do comment if you have any doubts or suggestions on this JS code.

Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.

OS: Windows 10

Code: HTML 5 Version


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