html - Remove whitespaces inside a string in javascript

Question

I've read this question about javascript trim, with a regex answer.

Then I expect trim to remove the inner space between Hello and World.

function myFunction() {
    alert("Hello World ".trim());
}

EDITED

Why I expected that!?

Nonsense! Obviously trim doesn't remove inner spaces!, only leading and trailing ones, that's how trim works, then this was a very wrong question, my apologies.

Answer 1

For space-character removal use

"hello world".replace(/s/g, "");

for all white space use the suggestion by Rocket in the comments below!