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Showing content from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float32Array below:

Float32Array - JavaScript | MDN

Constructor

Float32Array(): Creates a new Float32Array object.

Static properties

Also inherits static properties from its parent TypedArray.

Float32Array.BYTES_PER_ELEMENT: Returns a number value of the element size. 4 in the case of Float32Array.

Static methods

Inherits static methods from its parent TypedArray.

Instance properties

Also inherits instance properties from its parent TypedArray.

These properties are defined on Float32Array.prototype and shared by all Float32Array instances.

Float32Array.prototype.BYTES_PER_ELEMENT: Returns a number value of the element size. 4 in the case of a Float32Array.
Float32Array.prototype.constructor: The constructor function that created the instance object. For Float32Array instances, the initial value is the Float32Array constructor.

Instance methods

Inherits instance methods from its parent TypedArray.

Examples Different ways to create a Float32Array

// From a length
const float32 = new Float32Array(2);
float32[0] = 42;
console.log(float32[0]); // 42
console.log(float32.length); // 2
console.log(float32.BYTES_PER_ELEMENT); // 4

// From an array
const x = new Float32Array([21, 31]);
console.log(x[1]); // 31

// From another TypedArray
const y = new Float32Array(x);
console.log(y[0]); // 21

// From an ArrayBuffer
const buffer = new ArrayBuffer(32);
const z = new Float32Array(buffer, 4, 4);
console.log(z.byteOffset); // 4

// From an iterable
const iterable = (function* () {
  yield* [1, 2, 3];
})();
const float32FromIterable = new Float32Array(iterable);
console.log(float32FromIterable);
// Float32Array [1, 2, 3]

Specifications Browser compatibility

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