How to detect whitespace in a string in javascript

Question

how do i detect a whitespace "space" in a string. My string are somtehing like this 0651160403XL 00CBD012

my code:

<input type="text" name="myLabel"><br>
<span></span>
<script>
$("input[name='myLabel']").on('keyup', renderInput);
function renderInput() {
input = $(this).val();
if(input.match("/\s+/g"))
//trim the input to 0651160403XL
});
</script>

but my code is not working. How can i escape the slash in match function?

Possible duplicate of [Check if a string has white space](http://stackoverflow.com/questions/1731190/check-if-a-string-has-white-space) — Koby Douek, May 15 '17 at 12:53
Maybe something like `if (/\s/.test(input.trim())) { $(this).val(input.trim().split(/\s/)[0]); }`. The question is somewhat unclear. — Wiktor Stribiżew, May 15 '17 at 13:00

score 1 · Answer 1 · answered May 15 '17 at 12:57

1

You can simply use .replace(/\s+/g,'') `

$("input[name='myLabel']").on('keyup', renderInput);
function renderInput() {
  input = $(this).val();
  $(this).val(input.replace(/\s+/g,''));
}

`

answered May 15 '17 at 12:57

Piyush Kumar Baliyan

404
1
6
20

Shigehiro Kamisama · Answer 2 · 2017-05-15T13:02:38.023

0

Use :

input.match(/\s+/g)

Or :

Var reg = new regex("\\s", "g")

edited May 15 '17 at 13:02

answered May 15 '17 at 12:57

Shigehiro Kamisama

183
9

How to detect whitespace in a string in javascript

2 Answers2