Combining two regex patterns

Question

Is there a way of combining these two patterns? I would like to remove spaces and non-alphanumeric characters.

This does work, it just seems inefficient repeating the replace function.

var str;
str = $('p').text().replace(/[^a-zA-Z 0-9]+/g, '');
str = str.replace(/\s/g, '');

alert(str);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>What's Happening Here!</p>

Example jsFiddle.

Possible duplicate of [Combining regular expressions in Javascript](https://stackoverflow.com/questions/9213237/combining-regular-expressions-in-javascript) — Jan Stoltman, Dec 14 '17 at 11:29

Rory McCrossan · Answer 1 · 2017-12-14T11:29:08.783

6

You can combine them using the 'or' operator (|), like this: /[^a-zA-Z 0-9]+|\s/g

var str = $('p').text().replace(/[^a-zA-Z 0-9]+|\s/g, '');
console.log(str);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>What's Happening Here!</p>

edited Dec 14 '17 at 11:29

answered Dec 14 '17 at 11:27

Rory McCrossan

score 1 · Answer 2 · answered Dec 14 '17 at 11:31

1

You could explicity only allow numbers and letters. This will discard any white space

str = $('p').text().replace(/[^0-9a-zA-Z]/g, '');

answered Dec 14 '17 at 11:31

Kevin Lynch

score 0 · Answer 3 · answered Dec 14 '17 at 11:31

ypu also add .replace after last like

str = $('p').text().replace(/[^a-zA-Z 0-9]+/g, '').replace(/\s/g, '');

var str;
str = $('p').text().replace(/[^a-zA-Z 0-9]+/g, '').replace(/\s/g, '');
alert(str);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js">
</script>
<p>
  What 's Happening Here!
</p>

3 Answers3