Benchmark: For loop with and without conditional length check

Script Preparation code:

var bigArray = [
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {})
];
var mediumArray = [
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {}),
  (() => {})
];
var smallArray = [
  (() => {}),
  (() => {}),
  (() => {})
];
var emptyArray = [];

Tests:

conditional loop
if (bigArray.length) { for (let i = 0; i < bigArray.length; i++) { bigArray[i](); } } if (mediumArray.length) { for (let i = 0; i < mediumArray.length; i++) { mediumArray[i](); } } if (smallArray.length) { for (let i = 0; i < smallArray.length; i++) { smallArray[i](); } } if (emptyArray.length) { for (let i = 0; i < emptyArray.length; i++) { emptyArray[i](); } }
straight loop
for (let i = 0; i < bigArray.length; i++) { bigArray[i](); } for (let i = 0; i < mediumArray.length; i++) { mediumArray[i](); } for (let i = 0; i < smallArray.length; i++) { smallArray[i](); } for (let i = 0; i < emptyArray.length; i++) { emptyArray[i](); }
straight loop with shared index variable
let i; for (i = 0; i < bigArray.length; i++) { bigArray[i](); } for (i = 0; i < mediumArray.length; i++) { mediumArray[i](); } for (i = 0; i < smallArray.length; i++) { smallArray[i](); } for (i = 0; i < emptyArray.length; i++) { emptyArray[i](); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
conditional loop
straight loop
straight loop with shared index variable

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.115 Safari/537.36

Browser/OS: Chrome 102 on Windows

View result in a separate tab

Test name	Executions per second
conditional loop	138734.3 Ops/sec
straight loop	142553.7 Ops/sec
straight loop with shared index variable	142815.8 Ops/sec

For loop with and without conditional length check (version: 0)

Comparing performance of: conditional loop vs straight loop vs straight loop with shared index variable

Created: 2 years ago by: Guest

Jump to the latest result

conditional loop

straight loop

straight loop with shared index variable

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A