Benchmark: Testing isArray vs custom isArray vs pop vs array2

HTML Preparation code:

<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>

Script Preparation code:

var testArray = [1,2,3];
var fakeArray = 123;

var isArray = function(arr) {
    var type = Object.prototype.toString.call(arr);

    return (
        type === "[object Array]" ||
    type === "[object NodeList]" ||
    type === "[object TouchList]" ||
    type === "[object HTMLCollection]"
    );
};


var isArray2 = (arr) => arr.pop

Tests:

isArray
var a = 0; if (isArray(testArray)) { a++; }
Array.isArray
var a = 0; if (Array.isArray(testArray)) { a++; }
Optimized isArray1
var a = 0; if (testArray.length) { a++; }
Optimized isArray2
var a = 0; if (testArray && testArray.length) { a++; }
.pop
var a = 0; if (testArray.pop) { a++; }
isArray2
var a = 0; if (isArray2(testArray)) { a++; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
isArray
Array.isArray
Optimized isArray1
Optimized isArray2
.pop
isArray2

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Browser/OS: Chrome 69 on Mac OS X 10.14.0

View result in a separate tab

Test name	Executions per second
isArray	2929452.0 Ops/sec
Array.isArray	4068260.0 Ops/sec
Optimized isArray1	13626520.0 Ops/sec
Optimized isArray2	6786109.0 Ops/sec
.pop	13583410.0 Ops/sec
isArray2	6844288.0 Ops/sec

Testing isArray vs custom isArray vs pop vs array2 (version: 5)

Testing isArray vs jQuery.type === "array"

Comparing performance of: isArray vs Array.isArray vs Optimized isArray1 vs Optimized isArray2 vs .pop vs isArray2

Created: 5 years ago by: Registered User

Jump to the latest result

isArray

Array.isArray

Optimized isArray1

Optimized isArray2

.pop

isArray2

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A