how to remove from string javascript code example

Example 1: How to remove text from a string in javscript

var ret = "data-123".replace('data-','');
console.log(ret);   //prints: 123

Example 2: javascript remove text from string

var str = "That is like so not cool, I was like totally mad.";
var cleanStr = str.replace(/like/g, "");//replace every "like" with blank ""

Example 3: javascript remove character from string

mystring.replace(/r/g, '')