The Uint8ClampedArray() constructor creates Uint8ClampedArray objects. The contents are initialized to 0.
The Uint8ClampedArray() constructor creates Uint8ClampedArray objects. The contents are initialized to 0.
new Uint8ClampedArray() new Uint8ClampedArray(length) new Uint8ClampedArray(typedArray) new Uint8ClampedArray(object) new Uint8ClampedArray(buffer) new Uint8ClampedArray(buffer, byteOffset) new Uint8ClampedArray(buffer, byteOffset, length)
See TypedArray.
See TypedArray.
// From a length const uint8c = new Uint8ClampedArray(2); uint8c[0] = 42; uint8c[1] = 1337; console.log(uint8c[0]); // 42 console.log(uint8c[1]); // 255 (clamped) console.log(uint8c.length); // 2 console.log(uint8c.BYTES_PER_ELEMENT); // 1 // From an array const x = new Uint8ClampedArray([21, 31]); console.log(x[1]); // 31 // From another TypedArray const y = new Uint8ClampedArray(x); console.log(y[0]); // 21 // From an ArrayBuffer const buffer = new ArrayBuffer(8); const z = new Uint8ClampedArray(buffer, 1, 4); console.log(z.byteOffset); // 1 // From an iterable const iterable = (function* () { yield* [1, 2, 3]; })(); const uint8cFromIterable = new Uint8ClampedArray(iterable); console.log(uint8cFromIterable); // Uint8ClampedArray [1, 2, 3]
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | Deno | Node.js | ||
Uint8ClampedArray |
7 | 12 | 4 | 11.6 | 5.1 | 18 | 4 | 12 | 4.2 | 1.0 | 4 | 1.0 | 0.10.0 | |
constructor_without_parameters |
7 | 12 | 55 | 11.6 | 5.1 | 18 | 55 | 12 | 5 | 1.0 | ≤37 | 1.0 | 0.10.0 | |
iterable_allowed |
39 | 14 | 52 | 26 | 10 | 39 | 52 | 26 | 10 | 4.0 | 39 | 1.0 | 4.0.0 | |
new_required |
7 | 14 | 44 | 15 | 5.1 | 18 | 44 | 14 | 5 | 1.0 | ≤37 | 1.0 | 0.12.0 | |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray/Uint8ClampedArray