remove first char javascript

                                    // this will replace the first occurrence of "www." and return "testwww.com"
"www.testwww.com".replace("www.", "");

// this will slice the first four characters and return "testwww.com"
"www.testwww.com".slice(4);

// this will replace the www. only if it is at the beginning
"www.testwww.com".replace(/^(www\.)/,"");

                                    // Return a word without the first character
function newWord(str) {
	return str.replace(str[0],"");
	// or: return str.slice(1);
	// or: return str.substring(1);
}

console.log(newWord("apple"));	// "pple"   
console.log(newWord("cherry"));	// "herry"  

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