Run results for: lodash.round VS toFixed() VS toFixed() and parseFloat vs L.formmatNum

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36

Browser: Chrome 136

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Leaflet formatNum

379K/s

Round floating number using toFixed()

22K/s

Round floating number using toFixed() and parseFloat

16K/s

Round floating number using lodash round function

5K/s

View exact numbers

Test name	Executions per second
✓ Leaflet formatNum	378,597 Ops/sec
Round floating number using toFixed()	21,754 Ops/sec
Round floating number using toFixed() and parseFloat	15,638 Ops/sec
Round floating number using lodash round function	5,348 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

 <script src="https://unpkg.com/leaflet@1.6.0/dist/leaflet.js"
   integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew=="
   crossorigin=""></script>

Script Preparation code:

var x = 5.236;

Tests:

Round floating number using lodash round function
for (var i = 0; i < 1000; i++) { _.round(x,2); }
Round floating number using toFixed()
for (var i = 0; i < 1000; i++) { x.toFixed(2); }
Round floating number using toFixed() and parseFloat
for (var i = 0; i < 1000; i++) { parseFloat(x.toFixed(2)); }
Leaflet formatNum
for (var i = 0; i < 1000; i++) { L.Util.formatNum(x, 2); }