How to replace underscores with spaces using a regex in Javascript

Question

How can I replace underscores with spaces using a regex in Javascript?

var ZZZ = "This_is_my_name";

Answer 1

If it is a JavaScript code, write this, to have transformed string in ZZZ2:

var ZZZ = "This_is_my_name";
var ZZZ2 = ZZZ.replace(/_/g, " ");

also, you can do it in less efficient, but more funky, way, without using regex:

var ZZZ = "This_is_my_name";
var ZZZ2 = ZZZ.split("_").join(" ");

Answer 2

Regular expressions are not a tool to replace texts inside strings but just something that can search for patterns inside strings. You need to provide a context of a programming language to have your solution.

I can tell you that the regex _ will match the underscore but nothing more.

For example in Groovy you would do something like:

"This_is_my_name".replaceAll(/_/," ")
    ===> This is my name

but this is just language specific (replaceAll method)..

Answer 3

var str1="my__st_ri_ng";
var str2=str1.replace(/_/g, ' ');