Benchmark: Object key vs Array Filter

Script Preparation code:

var arrayHandlers = [];
var objectHandlers = {};

var handlersCount = 100;

var functionHandlersToFind = [];
var hashesToFind = [];

var generateHash = function(ix) {
    return 'hdl' + ix;
}

var createHandler = function() {
    return function(data) {
        return "#Count:" + data;
    }
};

for (let i = 0; i < handlersCount; i++) {
    let theNewHandler = createHandler();
    arrayHandlers.push(theNewHandler);
    functionHandlersToFind.push(theNewHandler);
    let generatedHash = generateHash(i);
    objectHandlers[generatedHash] = theNewHandler;
    hashesToFind.push(generatedHash);
}

Tests:

Find from array using function reference
functionHandlersToFind.forEach((fnHandler) => arrayHandlers.find(handler => handler === fnHandler))
Find by object keys
hashesToFind.forEach((hash, ix) => objectHandlers[hash])

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Find from array using function reference
Find by object keys

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Safari/605.1.15

Browser/OS: Safari 17 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Find from array using function reference	39757.4 Ops/sec
Find by object keys	99720.9 Ops/sec

Object key vs Array Filter (version: 0)

Access an stored element through object property key vs array filtering. Util for handlers references, when you need to store handlers and have acces for them later.

Comparing performance of: Find from array using function reference vs Find by object keys

Created: 3 years ago by: Guest

Jump to the latest result

Find from array using function reference

Find by object keys

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A