CODEWITHSUNDEEP
javascriptregex
Aaron
Aaron

Reputation: 1052

Remove all characters except alphanumeric and spaces with javascript

I like the solution povided by "Remove not alphanumeric characters from string. Having trouble with the [\] character" but how would I do this while leaving the spaces in place?

I need to tokenize string based on the spaces after it has been cleaned.

Upvotes: 29

Views: 32492

Answers (2)

Itang Sanjana
Itang Sanjana

Reputation: 717

I know this is an old thread, but so popular that appears at the top of a Google search. So, as an alternative, the accepted answer and comment from 3limin4t0r inspired me to:

.replace(/\W+/g, " ")

IMHO

const input = document.querySelector("input");
const button = document.querySelector("button");
const output = document.querySelector("output");

button.addEventListener("click", () => {
    output.textContent = input.value.replace(/\W+/g, " ");
})
<input>
<button>Replace</button>
<p>
  <output></output>
</p>

Upvotes: 3

Explosion Pills
Explosion Pills

Reputation: 191799

input.replace(/[^\w\s]/gi, '')

Shamelessly stolen from the other answer. ^ in the character class means "not." So this is "not" \w (equivalent to \W) and not \s, which is space characters (spaces, tabs, etc.) You can just use the literal if you need.

Upvotes: 67

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