Javascript Float64Array Type
Introduction
A Float64Array object describes an array-like view of an underlying binary data buffer.
The constructors are listed as follows:
new Float64Array(); new Float64Array(length); new Float64Array(typedArray); new Float64Array(object); new Float64Array(buffer [, byteOffset [, length]]);
| Parameter | Optional | Meaning |
|---|---|---|
| length | Required | an internal array buffer is created of size length multiplied by BYTES_PER_ELEMENT bytes. |
| typedArray | Required | the typedArray is copied into a new typed array. |
| object | Required | use the Float64Array.from() method. |
| buffer | Required | create from buffer |
| byteOffset | optional | offset to start |
| length | optional | length to copy |
Property access
You can reference elements in the array using standard array index syntax.
var int16 = new Float64Array(2); int16[0] = 42;/* w w w . j a v a 2 s . c o m*/ console.log(int16[0]); // 42
| Type | Value Range | Size in bytes | Description | Equivalent C type |
|---|---|---|---|---|
| Float64Array | -2^63 to 2^63-1 | 8 | 64-bit two's complement signed integer | int64_t (signed long long) |
PreviousNext