Removing items from array (v5)

Revision 5 of this benchmark created by Valtrius on

Setup

var a = [],
      i = 0;
    for (; i < 1000; i++)
      a[i] = Math.floor(Math.random() * 10);

Test runner

Ready to run.

Testing in
TestOps/sec
Array.splice
var b = a.slice();
for (var i = b.length; i--;)
  if (b === 5) b.splice(i, 1);
ready
Parsing array
var b = a.slice();
for (var i = 0, j = 0, l = b.length; i < l; i++)
  if (b !== 5) b[j++] = b[i];
b.length = j;
ready
Parsing array 2.1
var b = a.slice();
for (var i = 0; i < b.length; i++)
  if (b[i] === 5) b[i] = b.pop();

 
ready
Filter array
var b = a.slice();
b = b.filter(function(v) {
  return v !== 5;
})
ready
Delete from array
var b = a.slice();
for (var i = b.length; i--;) 
    if (b === 5) delete b[i]
ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.