How to push an element to an array

JavaScript performance comparison

Test case created by Johnson Jiang

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Test Ops/sec
use push
var arr1 = [];
for (var i = 0; i < 10; i++) {
  arr1.push(i);
}
pending…
use [arr.length]=
var arr2 = [];
for (var i = 0; i < 10; i++) {
  arr2[arr2.length] = i;
}
pending…

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