Benchmark: Native XHR vs XHR 2 (no ifs... just switches)

Native XHR vs XHR 2 (no ifs... just switches) (version: 0)

Script Preparation code:

function showResult(data) {
    //console.log(data);
}
var newUrl = "https://www.googleapis.com/discovery/v1/apis";

Tests:

Native XHR (via switch instead of if)
var xhr = new XMLHttpRequest(); xhr.open("GET", newUrl, true); xhr.onreadystatechange = function() { switch(xhr.readyState){ case 4: showResult(xhr); break; } } xhr.send();
Native XHR (enhanced)
var xhr = new XMLHttpRequest(); xhr.open("GET", newUrl, true); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { showResult(xhr); } } xhr.send();
Native XHR 2
var xhr = new XMLHttpRequest(); xhr.onload = showResult; xhr.open("GET", newUrl, true); xhr.send();
Fetch
var request = fetch(newUrl).then(showResult);

Rendered benchmark preparation results:

Previous results

Test case name	Result
Native XHR (via switch instead of if)
Native XHR (enhanced)
Native XHR 2
Fetch

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Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Browser/OS: Chrome 69 on Windows

Test name	Executions per second
Native XHR (via switch instead of if)	10383.0 Ops/sec
Native XHR (enhanced)	9719.3 Ops/sec
Native XHR 2	6714.5 Ops/sec
Fetch	6862.0 Ops/sec