array deconstruction (v4)

Revision 4 of this benchmark created on

Description

Testing ES5 compiled setState: array deconstruction vs object lookup.

Setup

var _state = 0;
function useState(initState) {
	return [_state, function(newState) {
		_state = newState;
		return _state;
	}];
}

Test runner

Ready to run.

Testing in
TestOps/sec
ES5 compiled Array deconstruction
function c(a) {
  var b = 0;
  return function() {
    return b < a.length ? {done:!1, value:a[b++]} : {done:!0};
  };
}
function d(a) {
  var b = "undefined" != typeof Symbol && Symbol.iterator && a[Symbol.iterator];
  return b ? b.call(a) : {next:c(a)};
}

var e = d(useState(0)),
state = e.next().value,
setState = e.next().value

setState(state++);
setState(state++);
setState(state++);
ready
Manual assignment
var a = useState(0),
state = a[0],
setState = a[1];

setState(state++);
setState(state++);
setState(state++);
ready
ES6
var [state, setState] = useState(0);

setState(state++);
setState(state++);
setState(state++);
ready

Revisions

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