take everything but first character javascript code example

Example 1: javascript remove first character from string

let str = " hello";
str = str.substring(1);

Example 2: get everything after the first character javascript

var val = 'asdasd:111122:123123123';
var response = val.substring(val.indexOf(":"));

alert(response); // ":111122:123123123"

Example 3: javascript remove first character from string

let str = 's';

str = (function f(s) { // don't use on large strings
  		return s.length<=1?'':f(s.slice(0, -1))+s[s.length-1]
	})(str); // ""