how to remove first letter in string javascript code example

Example 1: delete first character javascript

let str = 'Hello';
 
str = str.slice(1);
console.log(str);
 
/*
    Output: ello
*/

Example 2: javascript remove first character from string

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

Example 3: javascript delete first character in string

var oldStr ="Hello";
var newStr = oldStr.substring(1); //remove first character "ello"

Example 4: remove first char javascript

let str = 'Hello';
 
str = str.substring(1);
console.log(str);
 
/*
    Output: ello
*/

Example 5: 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); // ""