w3resource
JavaScript Exercises

JavaScript: Remove non-word characters

JavaScript String : Exercise-33 with Solution

Write a JavaScript function to remove non-word characters.

Test Data :
console.log(remove_non_word('PHP [email protected]#$%^&*()+`-={}[]|\\:";\'/?><., MySQL'));
"PHP - MySQL"

Pictorial Presentation:

JavaScript: Remove non-word characters

Sample Solution:-

HTML Code :

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function to remove non-printable ASCII chars.</title>
</head>
<body>

</body>
</html>

JavaScript Code :

function remove_non_word (str) {
    if ((str===null) || (str===''))
       return false;
 else
   str = str.toString();
  
var PATTERN = /[^\x20\x2D0-9A-Z\x5Fa-z\xC0-\xD6\xD8-\xF6\xF8-\xFF]/g;
  
  return str.replace(PATTERN, '');
}
console.log(remove_non_word('PHP [email protected]#$%^&*()+`-={}[]|\\:";\'/?><., MySQL'));

Sample Output:

PHP - MySQL

Flowchart :

Flowchart: JavaScript- Remove non-word characters

Live Demo :

See the Pen JavaScript Remove non-word characters-string-ex-33 by w3resource (@w3resource) on CodePen.


Improve this sample solution and post your code through Disqus

Previous: Write a JavaScript function to remove non-printable ASCII chars.
Next: Write a JavaScript function to convert a string to title case.

What is the difficulty level of this exercise?