Uint8ClampedArray - JavaScript | MDN
Constructor
Uint8ClampedArray()-
Creates a new
Uint8ClampedArrayobject.
Static properties
Also inherits static properties from its parent TypedArray.
Uint8ClampedArray.BYTES_PER_ELEMENT-
Returns a number value of the element size.
1in the case ofUint8ClampedArray.
Static methods
Inherits static methods from its parent TypedArray.
Instance properties
Also inherits instance properties from its parent TypedArray.
These properties are defined on Uint8ClampedArray.prototype and shared by all Uint8ClampedArray instances.
Uint8ClampedArray.prototype.BYTES_PER_ELEMENT-
Returns a number value of the element size.
1in the case of aUint8ClampedArray. Uint8ClampedArray.prototype.constructor-
The constructor function that created the instance object. For
Uint8ClampedArrayinstances, the initial value is theUint8ClampedArrayconstructor.
Instance methods
Inherits instance methods from its parent TypedArray.
Examples
Different ways to create a Uint8ClampedArray
js
// 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]
Specifications
| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-typedarray-objects |