Run results for: Function constructor (2)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Pass args to function.

38.0M/s

Pass arg via constructor

37.8M/s

View exact numbers

Test name	Executions per second
✓ Pass args to function.	38,003,728 Ops/sec
Pass arg via constructor	37,803,588 Ops/sec

Script Preparation code:

ab = new ArrayBuffer(1000*4);
u32 = new Uint32Array(ab);
code1 = `return function foo() {
  for (let i = 0; i < localCount; i++) {
    localArr[localCount]++;
  }
}`;
fnConstructor = new Function("localArr", "localCount", code1)(u32, 100);

code2 = `return function foo(argArr, argCount) {
  for (let i = 0; i < argCount; i++) {
    argArr[argCount]++;
  }
}`;
fnWithArgs = new Function(code2)();

Tests:

Pass arg via constructor
fnConstructor();
Pass args to function.
fnWithArgs(u32, 100);

Run results for: Function constructor (2)

Constructing a Function() by passing args into the constructor or generated method

Pass arg via constructor

Pass args to function.