w3resource

JavaScript: Alternet of trim function using regular expression

JavaScript validation with regular expression: Exercise-5 with Solution

Write a JavaScript program that works as a regular expression trim function (string).

Pictorial Presentation:

JavaScript: Alternet of trim function using regular expression

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Trim function using regular expression</title>
</head>
<body>
</body>
</html>

JavaScript Code:

function Trim(str)
{
  var result;
  if (typeof str === 'string') 
  {
    result = str.replace(/^\s+|\s+$/g, '');
    return result;
  }
  else
  {
    return false;
  }
}
console.log(Trim(' w3resource '));

Sample Output:

w3resource

Flowchart:

Flowchart: JavaScript- Alternet of trim function( ) using regular expression

Live Demo:

See the Pen javascript-regexp-exercise-5 by w3resource (@w3resource) on CodePen.


Improve this sample solution and post your code through Disqus

Previous: Write a JavaScript program to search a date within a string.
Next:Write a JavaScript program to count number of words in string.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.