replace working for only first sub element

Question

I don't want to use split or join.

var str = "cause variety of files";  
alert(str.replace(" " , "_"));

The code above outputs : "cause_variety of files"

The output I seek is : "cause_variety_of_files"

@JoaoPalma - you are right. i asked without using split and join read the question first — Sudharsan S, May 19 '14 at 14:43
the solution with the regular expression is there too, if you see the answer with most upvotes — Joao Palma, May 19 '14 at 14:53

Magus · Accepted Answer · 2014-05-19T14:48:58.940

3

Try this code :

str.replace(/ /g, "_");

By default, the replace function replace the first occurence. So you must use a RegExp with the global flag.

edited May 19 '14 at 14:48

answered May 19 '14 at 14:37

Magus

1

"You must use regex" surely doesn't explain what the regex does. You should explain more. – Sterling Archer May 19 '14 at 14:42
Can you explain how it works? – Sudharsan S May 19 '14 at 14:43
I just edited my answer – Magus May 19 '14 at 14:49

score 0 · Answer 2 · answered May 19 '14 at 14:37

0

try this for multiple space

str.replace(/\s+/g,'_');

or single space

str.replace(/\s/g,'_');

answered May 19 '14 at 14:37

Man Programmer

3

`Try this` does not teach the asker anything. Please explain what you did and why it should work, otherwise it's not a good answer. – Sterling Archer May 19 '14 at 14:38

score 0 · Answer 3 · answered May 19 '14 at 14:38

0

Try using regular expression and the replace() function:

$(document).ready(function() {
    var elem = "cause variety of files";
    console.log(elem.replace(/\s+/g, '_'));
});

The regex takes all the whitespace ( 1 or more ) using the \s+ pattern and replace it by a string you like. In your case a underscore.

answered May 19 '14 at 14:38

Mivaweb

1

You shouldn't use `alert()` like a debug statement. `console.log()` should be used for debugging (also because you can use breakpoints in dev tools if you need to pause execution). Also please explain what your regex does – Sterling Archer May 19 '14 at 14:39

3 Answers3