How do I use a Regex to replace non-alphanumeric characters with white space?

Question

I built a Javascript function to make the first letter uppercase. My issue is that I have some words which are like "name_something" and what I want is "Name Something".

I did this:

function toCamelCase(text) {
  return text.replace(/\b(\w)/g, function (match, capture) {
    return capture.toUpperCase();
  }).split(/[^a-zA-Z]/);
}

So, what went wrong? What is the question?

Teemu
– Teemu

2018-04-12 12:40:20 +00:00
Commented Apr 12, 2018 at 12:40 — Teemu
– Teemu, Commented Apr 12, 2018 at 12:40

Ankit Agarwal · Accepted Answer · 2018-04-12 12:42:18Z

4

You can use [\W_] to get rid of characters that are not alphanumeric. Where W represent characters from a-z, A-Z and 0-9

var str = 'this $is a _test@#$%';
str = str.replace(/[\W_]+/g,' ');
console.log(str);

So, to make the words capitalise alongside the replace you can do,

var str = 'this $is a _test@#$%';
str = str.replace(/[\W_]+/g,' ');
var res = str.split(' ').map((s) => s.charAt(0).toUpperCase() + s.substr(1)).join(' ');
console.log(res);

answered Apr 12, 2018 at 12:42

Ankit Agarwal

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2 Comments

Jakub Over a year ago

Thanks could you please show me in my case how that will be? I have some issues to adapt it to my

Ankit Agarwal Over a year ago

@Jakub check the working snippet. The second one replaces and change to uppercase

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