remove first char javascript

1var string = "abcd";
2console.log(string.substring(3)); //"d"

1let str = 'Hello';
2 
3str = str.substring(1);
4console.log(str);
5 
6/*
7    Output: ello
8*/
9

1// this will replace the first occurrence of "www." and return "testwww.com"
2"www.testwww.com".replace("www.", "");
3
4// this will slice the first four characters and return "testwww.com"
5"www.testwww.com".slice(4);
6
7// this will replace the www. only if it is at the beginning
8"www.testwww.com".replace(/^(www\.)/,"");

1// Return a word without the first character
2function newWord(str) {
3	return str.replace(str[0],"");
4	// or: return str.slice(1);
5	// or: return str.substring(1);
6}
7
8console.log(newWord("apple"));	// "pple"   
9console.log(newWord("cherry"));	// "herry"