javascript string remove white spaces and hyphens

Question

I would like to remove white spaces and hyphens from a given string.

 var string = "john-doe alejnadro";
 var new_string = string.replace(/-\s/g,"")

Doesn't work, but this next line works for me:

var new_string = string.replace(/-/g,"").replace(/ /g, "")

How do I do it in one go ?

Answer 1

Use alternation:

var new_string = string.replace(/-|\s/g,"");

a|b will match either a or b, so this matches both hyphens and whitespace.

Example:

> "hyphen-containing string".replace(/-|\s/g,"")
'hyphencontainingstring'