Run results for: Clamp Integers by various methods

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 16

Operating system: iOS 16.6.1

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
Clamp from 0 to 255 using ternary	1911781.5 Ops/sec
Clamp from 0 to 255 using Min/Max	1534482.6 Ops/sec
Clamp from 0 to 255 with IF	3792831.0 Ops/sec
Clamp from 0 to 255 with unary &&	2422174.5 Ops/sec
Clamp in arrow function with ternary	1779341.4 Ops/sec
Clamp in regular function with MinMax	647478.9 Ops/sec
Clamp in arrow function with IF	1254556.5 Ops/sec
Clamp in regular function with unary	1230326.4 Ops/sec

Script Preparation code:

var n = 128,
    l = -14,
    h = 304;

var clampIf = (x) => {
    if (x < 0) return 0;
    else if (x > 255) return 255;
    else return x;
};

var clampTern = (x) => (x < 0) ? 0 : (x > 255) ? 255 : x;

function clampU(x){ x < 0 && (x=0); x > 255 && (x=255); return x }

function clampMinMax(x){return Math.min(Math.max(x,0),255) }

Tests:

Clamp from 0 to 255 using ternary
n = n < 0 ? 0 : n > 255 ? 255 : n; l = l < 0 ? 0 : l > 255 ? 255 : l; h = h < 0 ? 0 : h > 255 ? 255 : h;
Clamp from 0 to 255 using Min/Max
n = Math.min(Math.max(n,0),255); l = Math.min(Math.max(l,0),255); h = Math.min(Math.max(h,0),255);
Clamp from 0 to 255 with IF
if (n < 0) { n = 0; } else if (n > 255) { n = 255; }; if (l < 0) { l = 0; } else if (l > 255) { l = 255; }; if (h < 0) { h = 0; } else if (n > 255) { h = 255; };
Clamp from 0 to 255 with unary &&
n < 0 && (n=0); n > 255 && (n=255); l < 0 && (l=0); l > 255 && (l=255); h < 0 && (h=0); h > 255 && (h=255);
Clamp in arrow function with ternary
n = clampTern(n); l = clampTern(l); h = clampTern(h);
Clamp in regular function with MinMax
n = clampMinMax(n); l = clampMinMax(l); h = clampMinMax(h);
Clamp in arrow function with IF
n = clampIf(n); l = clampIf(l); h = clampIf(h);
Clamp in regular function with unary
n = clampU(n); l = clampU(l); h = clampU(h);

Run results for: Clamp Integers by various methods

Different methods to clamp an integer value to a range. First four are ternary, min/max, IF, and unary. Then those four when abstracted into functions.

Clamp from 0 to 255 using ternary

Clamp from 0 to 255 using Min/Max

Clamp from 0 to 255 with IF

Clamp from 0 to 255 with unary &&

Clamp in arrow function with ternary

Clamp in regular function with MinMax

Clamp in arrow function with IF

Clamp in regular function with unary