could throttle function remove "arguments and apply method"?

[lynxerzhang]

hi, I have a question to ask, in throttle function, I use es6's arrow function and spread operator(I remove arguments and func.apply), Is that right?

import 'babel-polyfill';

export const throttle = (func, wait) => {
  let args, prevArgs, argsChanged, result;
  let previous = 0;
  return (...rest) => {
    let now, remaining;
    if(wait){
      now = Date.now();
      remaining = wait - (now - previous);
    }
    args = [...rest]; //use rest, remove arguments
    argsChanged = JSON.stringify(args) != JSON.stringify(prevArgs);
    prevArgs = Object.assign({}, args);
    if (argsChanged || wait && (remaining <= 0 || remaining > wait)) {
      if(wait){
        previous = now;
      }
      result = func(...args); //and remove apply
      args = null;
    }
    return result;
  };
};