how to remove first 4 chars from string js code example

Example 1: remove first 3 characters from string javascript

var string = "abcd";
console.log(string.substring(3)); //"d"

Example 2: javascript remove first character from string

let str = 'ass';

str = str.split(''); // (3) ["a", "s", "s"]
str.shift(); // (2) ["s", "s"]
str = str.join(''); // "ss"