Object properties and array items

JavaScript performance comparison

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Test Ops/sec
Object properties
var object = {
  x: 10,
  y: 15,
  z: 20

var x = object["x"];
var y = object["y"];
var z = object["z"];
Array items
var object = [10, 15, 20];

var x = object["0"];
var y = object["1"];
var z = object["2"];

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