Float64Array

package js.lib

implements ArrayBufferView

Available on js

The Float64Array typed array represents an array of 64-bit floating point numbers (corresponding to the C double data type) in the platform byte order. If control over byte order is needed, use DataView instead. The contents are initialized to 0. Once established, you can reference elements in the array using the object's methods, or using standard array index syntax (that is, using bracket notation).

Documentation Float64Array by Mozilla Contributors, licensed under CC-BY-SA 2.5.

Static variables

staticfinalread onlyBYTES_PER_ELEMENT:Int

Returns a number value of the element size. 8 in the case of an Float64Array.

Static methods

staticfrom(source:{}, ?mapFn:(value:Float, index:Int) ‑> Int, ?thisArg:Any):Float64Array

staticfrom(source:{}, ?mapFn:(value:Float) ‑> Int, ?thisArg:Any):Float64Array

Creates a new Float64Array from an array-like or iterable object. See also Array.from().

staticof(elements:Rest<Dynamic>):Float64Array

Creates a new Float64Array with a variable number of arguments. See also Array.of().

Constructor

new(buffer:ArrayBuffer, ?byteOffset:Int, ?length:Int)

new(length:Int)

new(object:{})

Throws:

null	DOMError

Variables

finalBYTES_PER_ELEMENT_:Int

Returns a number value of the element size.

finalbuffer:ArrayBuffer

Returns the ArrayBuffer referenced by the Float64Array Fixed at construction time and thus read only.

finalbyteLength:Int

Returns the length (in bytes) of the Float64Array from the start of its ArrayBuffer. Fixed at construction time and thus read only.

finalbyteOffset:Int

Returns the offset (in bytes) of the Float64Array from the start of its ArrayBuffer. Fixed at construction time and thus read only.

finallength:Int

Returns the number of elements hold in the Float64Array. Fixed at construction time and thus read only.

Methods

copyWithin(target:Int, start:Int, ?end:Int):Float64Array

Copies a sequence of array elements within the array. See also Array.prototype.copyWithin().

entries():Iterator<KeyValue<Int, Float>>

Returns a new Array Iterator object that contains the key/value pairs for each index in the array. See also Array.prototype.entries().

every(callback:(currentValue:Float, index:Int, array:Float64Array) ‑> Bool, ?thisArg:Any):Bool

every(callback:(currentValue:Float) ‑> Bool, ?thisArg:Any):Bool

every(callback:(currentValue:Float, index:Int) ‑> Bool, ?thisArg:Any):Bool

Tests whether all elements in the array pass the test provided by a function. See also Array.prototype.every().

fill(value:Float, ?start:Int, ?end:Int):Float64Array

Fills all the elements of an array from a start index to an end index with a static value. See also Array.prototype.fill().

filter(callback:(element:Float, index:Int, array:Float64Array) ‑> Bool, ?thisArg:Any):Float64Array

filter(callback:(element:Float) ‑> Bool, ?thisArg:Any):Float64Array

filter(callback:(element:Float, index:Int) ‑> Bool, ?thisArg:Any):Float64Array

Creates a new array with all of the elements of this array for which the provided filtering function returns true. See also Array.prototype.filter().

find(callback:(element:Float, index:Int, array:Float64Array) ‑> Bool, ?thisArg:Any):Null<Int>

find(callback:(element:Float) ‑> Bool, ?thisArg:Any):Null<Int>

find(callback:(element:Float, index:Int) ‑> Bool, ?thisArg:Any):Null<Int>

Returns the found value in the array, if an element in the array satisfies the provided testing function or undefined if not found. See also Array.prototype.find().

findIndex(callback:(element:Float, index:Int, array:Float64Array) ‑> Bool, ?thisArg:Any):Int

findIndex(callback:(element:Float) ‑> Bool, ?thisArg:Any):Int

findIndex(callback:(element:Float, index:Int) ‑> Bool, ?thisArg:Any):Int

Returns the found index in the array, if an element in the array satisfies the provided testing function or -1 if not found. See also Array.prototype.findIndex().

forEach(callback:(element:Float, index:Int, array:Float64Array) ‑> Void, ?thisArg:Any):Void

forEach(callback:(element:Float) ‑> Void, ?thisArg:Any):Void

forEach(callback:(element:Float, index:Int) ‑> Void, ?thisArg:Any):Void

Calls a function for each element in the array. See also Array.prototype.forEach().

includes(searchElement:Float, ?fromIndex:Int):Bool

Determines whether a typed array includes a certain element, returning true or false as appropriate. See also Array.prototype.includes().

indexOf(searchElement:Float, ?fromIndex:Int):Int

Returns the first (least) index of an element within the array equal to the specified value, or -1 if none is found. See also Array.prototype.indexOf().

join(?separator:String):String

Joins all elements of an array into a string. See also Array.prototype.join().

keys():Iterator<Int>

Returns a new Array Iterator that contains the keys for each index in the array. See also Array.prototype.keys().

lastIndexOf(searchElement:Float, ?fromIndex:Int):Int

Returns the last (greatest) index of an element within the array equal to the specified value, or -1 if none is found. See also Array.prototype.lastIndexOf().

map(callback:(element:Float, index:Int, array:Float64Array) ‑> Float, ?thisArg:Any):Float64Array

map(callback:(element:Float) ‑> Float, ?thisArg:Any):Float64Array

map(callback:(element:Float, index:Int) ‑> Float, ?thisArg:Any):Float64Array

Creates a new array with the results of calling a provided function on every element in this array. See also Array.prototype.map().

reduce<T>(callback:(previousValue:T, currentValue:Float, index:Int, array:Float64Array) ‑> T, initialValue:T):T

reduce<T>(callback:(previousValue:T, currentValue:Float) ‑> T, initialValue:T):T

reduce<T>(callback:(previousValue:T, currentValue:Float, index:Int) ‑> T, initialValue:T):T

reduce(callbackfn:(previousValue:Float, currentValue:Float) ‑> Int):Float

reduce(callbackfn:(previousValue:Float, currentValue:Float, index:Int) ‑> Int):Float

reduce(callbackfn:(previousValue:Float, currentValue:Float, index:Int, array:Float64Array) ‑> Int):Float

Apply a function against an accumulator and each value of the array (from left-to-right) as to reduce it to a single value. See also Array.prototype.reduce().

reduceRight<T>(callback:(previousValue:T, currentValue:Float, index:Int, array:Float64Array) ‑> T, initialValue:T):T

reduceRight<T>(callback:(previousValue:T, currentValue:Float) ‑> T, initialValue:T):T

reduceRight<T>(callback:(previousValue:T, currentValue:Float, index:Int) ‑> T, initialValue:T):T

reduceRight(callbackfn:(previousValue:Float, currentValue:Float) ‑> Int):Float

reduceRight(callbackfn:(previousValue:Float, currentValue:Float, index:Int) ‑> Int):Float

reduceRight(callbackfn:(previousValue:Float, currentValue:Float, index:Int, array:Float64Array) ‑> Int):Float

Apply a function against an accumulator and each value of the array (from right-to-left) as to reduce it to a single value. See also Array.prototype.reduceRight().

reverse():Float64Array

Reverses the order of the elements of an array — the first becomes the last, and the last becomes the first. See also Array.prototype.reverse().

set(array:Array<Float>, ?offset:Int):Void

set(array:Int8Array, ?offset:Int):Void

set(array:Uint8Array, ?offset:Int):Void

set(array:Uint8ClampedArray, ?offset:Int):Void

set(array:Int16Array, ?offset:Int):Void

set(array:Uint16Array, ?offset:Int):Void

set(array:Int32Array, ?offset:Int):Void

set(array:Uint32Array, ?offset:Int):Void

set(array:Float32Array, ?offset:Int):Void

set(array:Float64Array, ?offset:Int):Void

set(array:Array<Int>, ?offset:Int):Void

Stores multiple values in the typed array, reading input values from a specified array.

slice(?start:Int, ?end:Int):Float64Array

Extracts a section of an array and returns a new array. See also Array.prototype.slice().

some(callback:(element:Float, index:Int, array:Float64Array) ‑> Bool, ?thisArg:Any):Bool

some(callback:(element:Float) ‑> Bool, ?thisArg:Any):Bool

some(callback:(element:Float, index:Int) ‑> Bool, ?thisArg:Any):Bool

Returns true if at least one element in this array satisfies the provided testing function. See also Array.prototype.some().

sort(?compareFn:(x:Float, y:Float) ‑> Int):Float64Array

Sorts the elements of an array in place and returns the array. See also Array.prototype.sort().

subarray(?begin:Int, ?end:Int):Float64Array

Returns a new TypedArray from the given start and end element index.

toLocaleString(?locales:String, ?options:Null<NumberFormatOptions>):String

Returns a string representing the array and its elements. See also Array.prototype.toString().

toString():String

Returns a string representing the array and its elements. See also Array.prototype.toString().

values():Iterator<Float>

Returns a new Array Iterator object that contains the values for each index in the array. See also Array.prototype.values().