Abs Abs - 1 year ago 174
Javascript Question

JavaScript: Check if a string has white space

I am trying to check if a string has white space. I found this function but it doesn't seem to be working:

function hasWhiteSpace(s) {

var reWhiteSpace = new RegExp("/^\s+$/");

// Check for white space
if (reWhiteSpace.test(s)) {
//alert("Please Check Your Fields For Spaces");
return false;

return true;

Btw, I added quotes to RegExp.

Is there something wrong? Is there anything better that I can use? Hopefully JQuery.

Thanks for any help.

Answer Source

You can simply use the indexOf method on the input string:

function hasWhiteSpace(s) {
  return s.indexOf(' ') >= 0;

Or you can use the test method, on a simple RegEx:

function hasWhiteSpace(s) {
  return /\s/g.test(s);

This will also check for other white space characters like Tab.

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