Run results for: array math.max vs for loop variants

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

for loop length caching

155K/s

basic for loop

145K/s

for loop reverse

144K/s

Math.max.apply

53K/s

Math.max with spread

52K/s

for-of loop

21K/s

View exact numbers

Script Preparation code:

var arr = [];
var max = -Infinity;
for (i = 0; i < 4096; i++) { 
  arr.push(Math.random() * i);
}

Tests:

Math.max.apply
max = Math.max.apply(Math, arr);
Math.max with spread
max = Math.max(...arr);
basic for loop
for (let i = 0; i < arr.length; i++) { if (arr[i] > max) { max = arr[i]; } }
for loop length caching
for (let i = 0, len = arr.length; i < len; i++) { if (arr[i] > max) { max = arr[i]; } }
for loop reverse
for (let i = arr.length - 1; i >= 0; i--) { if (arr[i] > max) { max = arr[i]; } }
for-of loop
for (const value of arr) { if (value > max) { max = value; } }