Array comparison

Benchmark created on

Preparation HTML

<script>
  var array1 = [];
  for (var i = 0; i < 1000; i++) {
   array1[i] = Math.round(Math.random() * 1000);
  }
  var array2 = array1.slice(0);
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
for loop
var length = array1.length
for (var i = 0; i < length; i++) {
 if (array1[i] != array2[i]) {
  return 'bad';
 }
}
ready
toString
if (array1.toString() === array2.toString()) {
 return 'good';
} else {
 return 'bad';
}
ready
JSON.stringify
if (JSON.stringify(array1) === JSON.stringify(array2)) {
 return 'good';
} else {
 return 'bad';
}
ready
join
if (array1.join("") === array2.join("")) {
 return 'good';
} else {
 return 'bad';
}
ready

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