camelcase

1String.prototype.toCamelCase = function () {
2	let STR = this.toLowerCase()
3		.trim()
4		.split(/[ -_]/g)
5		.map(word => word.replace(word[0], word[0].toString().toUpperCase()))
6		.join('');
7	return STR.replace(STR[0], STR[0].toLowerCase());
8};

1String.prototype.camelCase=function(){
2   return this.split(/[ -_]/g).map(function(word){
3    return word.charAt(0).toUpperCase() + word.slice(1);
4  }).join('');
5}

1convert camel case to string