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Run results for:
array math.max vs for loop
compare finding the maximum value with math.max using .apply & using the spread (...) operator, vs a basic for loop with an if statement, & finally a basic foor loop using length caching
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<iframe src="https://measurethat.net/Embed?id=528764" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Math.max.apply
490K/s
Math.max with spread
337K/s
for loop length caching
20K/s
basic for loop
13K/s
View exact numbers
Test name
Executions per second
✓
Math.max.apply
489,830 Ops/sec
Math.max with spread
336,978 Ops/sec
for loop length caching
19,670 Ops/sec
basic for loop
13,120 Ops/sec
Script Preparation code:
var arr = []; var max = -Infinity; for (i = 0; i < 1000; 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]; } }