JavaScript : Replace all character by empty after a specific character

Question

I have this String :

var test = "toto@test.com";

I would like to replace all character after the "@" character by empty value. I would like to get this String :

var test = "toto"

Answer 1

"toto@test.com".replace(/@.+$/, '')

Answer 2

Try this:

test= test.split('@')[0]