Benchmark: Looping With Stuff

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

// Generate a large dataset (1 million numbers)
const largeDataset = Array.from({ length: 1_000_000 }, (_, i) => i + 1);

// Function using for...of loop
function testForOfLoop(arr) {
    console.time("for...of loop");
    let sum = 0;
    for (const num of arr) {
        if (num === 500_000) continue; // Skip 500,000
        if (num === 900_000) break; // Stop at 900,000
        sum += num;
    }
    console.timeEnd("for...of loop");
    return sum;
}

// Function using forEach loop
function testForEachLoop(arr) {
    console.time("forEach loop");
    let sum = 0;
    arr.forEach((num) => {
        if (num === 500_000) return; // Doesn't break out
        if (num === 900_000) return; // Still loops
        sum += num;
    });
    console.timeEnd("forEach loop");
    return sum;
}

// Function using for loop
function testForLoop(arr) {
    console.time("for loop");
    let sum = 0;
    for (let i = 0; i < arr.length; i++) {
        if (arr[i] === 500_000) continue; // Skip 500,000
        if (arr[i] === 900_000) break; // Stop at 900,000
        sum += arr[i];
    }
    console.timeEnd("for loop");
    return sum;
}

Tests:

Forof
testForOfLoop(largeDataset)
ForEach
testForEachLoop(largeDataset)
For
testForLoop(largeDataset)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Forof
ForEach
For

Fastest: N/A

Slowest: N/A

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/118.0.0.0 Safari/537.36

Browser/OS: Chrome 118 on Windows

View result in a separate tab

Test name	Executions per second
Forof	90.2 Ops/sec
ForEach	59.2 Ops/sec
For	492.4 Ops/sec

Related benchmarks:

Looping With Stuff (version: 1)

Loop some stuff haha

Comparing performance of: Forof vs ForEach vs For

Created: one year ago by: Guest

Jump to the latest result

Forof

ForEach

For

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A