[Javascript] How to insert space before capital letters?

Question

I want to insert spaces before capital letters. For example, `ThisIsATestMessage` to `This Is A Test Message`. How can I do that in Javascript?

Meera · Accepted Answer

You can use `replace()` function like below to insert space before capital letters.

```js
let str = 'ThisIsATestMessage';
console.log(str.replace(/([A-Z])/g, ' $1').trim());
```

Run here [https://onecompiler.com/javascript/3xnpkcn3h](https://onecompiler.com/javascript/3xnpkcn3h)

1 Answer