Run results for: Measuring impact of closures

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36

Browser: Chrome 115

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
f1	3645259.5 Ops/sec
f2	3590228.8 Ops/sec
f3	3624467.8 Ops/sec
f4	3627131.8 Ops/sec
f5	2373211.0 Ops/sec
f6	2305061.5 Ops/sec

Script Preparation code:

let [a,b] = Math.random() < 0.5 ? [5,9] : [9,5];

let sum = 0;

function hello(x) { sum += x };

function f1(x) { hello(x + a) };
function f2(x) { f2.hello(x + b) }; Object.defineProperty(f2, "hello", { value: hello });

function f3(x) { hello(x + b) };
function f4(x) { f4.hello(x + a) }; Object.defineProperty(f4, "hello", { value: hello });

function f5(x) { f5.hello(x + f5.n) }; Object.defineProperty(f5, "hello", { value: hello }); Object.defineProperty(f5, "n", { value: a });
function f6(x) { f6.hello(x + f6.n) }; Object.defineProperty(f6, "hello", { value: hello }); Object.defineProperty(f6, "n", { value: b });

Tests:

f1
f1(i);
f2
f2(i);
f3
f3(i);
f4
f4(i);
f5
f5(i);
f6
f6(i);