javascript convert string to bool

let toBool = string => string === 'true' ? true : false;
// Not everyone gets ES6 so here for the beginners
function toBool(string){
	if(string === 'true'){
      return true;
    } else {
      return false;
    }
}stringToBoolean: function(string){
    switch(string.toLowerCase().trim()){
        case "true": case "yes": case "1": return true;
        case "false": case "no": case "0": case null: return false;
        default: return Boolean(string);
    }
}var isHidden='true';
var isHiddenBool = (isHidden == 'true');