Interface Float64Array

interface Float64Array {
    [toStringTag]: "Float64Array";
    buffer: ArrayBufferLike;
    byteLength: number;
    byteOffset: number;
    BYTES_PER_ELEMENT: number;
    length: number;
    [iterator](): ArrayIterator<number>;
    at(index: number): number;
    copyWithin(target: number, start: number, end?: number): this;
    entries(): ArrayIterator<[number, number]>;
    every(predicate: ((value: number, index: number, array: Float64Array) => unknown), thisArg?: any): boolean;
    fill(value: number, start?: number, end?: number): this;
    filter(predicate: ((value: number, index: number, array: Float64Array) => any), thisArg?: any): Float64Array;
    find(predicate: ((value: number, index: number, obj: Float64Array) => boolean), thisArg?: any): number;
    findIndex(predicate: ((value: number, index: number, obj: Float64Array) => boolean), thisArg?: any): number;
    findLast<S>(predicate: ((value: number, index: number, array: Float64Array) => value is S), thisArg?: any): S;
    findLast(predicate: ((value: number, index: number, array: Float64Array) => unknown), thisArg?: any): number;
    findLastIndex(predicate: ((value: number, index: number, array: Float64Array) => unknown), thisArg?: any): number;
    forEach(callbackfn: ((value: number, index: number, array: Float64Array) => void), thisArg?: any): void;
    includes(searchElement: number, fromIndex?: number): boolean;
    indexOf(searchElement: number, fromIndex?: number): number;
    join(separator?: string): string;
    keys(): ArrayIterator<number>;
    lastIndexOf(searchElement: number, fromIndex?: number): number;
    map(callbackfn: ((value: number, index: number, array: Float64Array) => number), thisArg?: any): Float64Array;
    reduce(callbackfn: ((previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number)): number;
    reduce(callbackfn: ((previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number), initialValue: number): number;
    reduce<U>(callbackfn: ((previousValue: U, currentValue: number, currentIndex: number, array: Float64Array) => U), initialValue: U): U;
    reduceRight(callbackfn: ((previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number)): number;
    reduceRight(callbackfn: ((previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number), initialValue: number): number;
    reduceRight<U>(callbackfn: ((previousValue: U, currentValue: number, currentIndex: number, array: Float64Array) => U), initialValue: U): U;
    reverse(): Float64Array;
    set(array: ArrayLike<number>, offset?: number): void;
    slice(start?: number, end?: number): Float64Array;
    some(predicate: ((value: number, index: number, array: Float64Array) => unknown), thisArg?: any): boolean;
    sort(compareFn?: ((a: number, b: number) => number)): this;
    subarray(begin?: number, end?: number): Float64Array;
    toLocaleString(): string;
    toLocaleString(locales: string | string[], options?: NumberFormatOptions): string;
    toReversed(): Float64Array;
    toSorted(compareFn?: ((a: number, b: number) => number)): Float64Array;
    toString(): string;
    valueOf(): Float64Array;
    values(): ArrayIterator<number>;
    with(index: number, value: number): Float64Array;
    [index: number]: number;
}

Indexable

[index: number]: number

Properties

`Readonly`[toStringTag]

[toStringTag]: "Float64Array"

`Readonly`buffer

buffer: ArrayBufferLike

The ArrayBuffer instance referenced by the array.

`Readonly`byteLength

byteLength: number

The length in bytes of the array.

`Readonly`byteOffset

byteOffset: number

The offset in bytes of the array.

`Readonly`BYTES_PER_ELEMENT

BYTES_PER_ELEMENT: number

The size in bytes of each element in the array.

`Readonly`length

length: number

The length of the array.

Methods

[iterator]

[iterator](): ArrayIterator<number>
Returns ArrayIterator<number>

at

at(index): number
Returns the item located at the specified index.
Parameters
- index: number
  The zero-based index of the desired code unit. A negative index will count back from the last item.
Returns number

copyWithin

copyWithin(target, start, end?): this
Returns the this object after copying a section of the array identified by start and end to the same array starting at position target
Parameters
- target: number
  If target is negative, it is treated as length+target where length is the length of the array.
- start: number
  If start is negative, it is treated as length+start. If end is negative, it is treated as length+end.
- Optionalend: number
  If not specified, length of the this object is used as its default value.
Returns this

entries

entries(): ArrayIterator<[number, number]>
Returns an array of key, value pairs for every entry in the array

Returns ArrayIterator<[number, number]>

every

every(predicate, thisArg?): boolean
Determines whether all the members of an array satisfy the specified test.
Parameters
- predicate: ((value: number, index: number, array: Float64Array) => unknown)
  A function that accepts up to three arguments. The every method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value false, or until the end of the array.
  - - (value, index, array): unknown
    - Parameters
      value: number
      index: number
      array: Float64Array
      Returns unknown
- OptionalthisArg: any
  An object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
Returns boolean

fill

fill(value, start?, end?): this
Changes all array elements from start to end index to a static value and returns the modified array
Parameters
- value: number
  value to fill array section with
- Optionalstart: number
  index to start filling the array at. If start is negative, it is treated as length+start where length is the length of the array.
- Optionalend: number
  index to stop filling the array at. If end is negative, it is treated as length+end.
Returns this

filter

filter(predicate, thisArg?): Float64Array
Returns the elements of an array that meet the condition specified in a callback function.
Parameters
- predicate: ((value: number, index: number, array: Float64Array) => any)
  A function that accepts up to three arguments. The filter method calls the predicate function one time for each element in the array.
  - - (value, index, array): any
    - Parameters
      value: number
      index: number
      array: Float64Array
      Returns any
- OptionalthisArg: any
  An object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
Returns Float64Array

find

find(predicate, thisArg?): number
Returns the value of the first element in the array where predicate is true, and undefined otherwise.
Parameters
- predicate: ((value: number, index: number, obj: Float64Array) => boolean)
  find calls predicate once for each element of the array, in ascending order, until it finds one where predicate returns true. If such an element is found, find immediately returns that element value. Otherwise, find returns undefined.
  - - (value, index, obj): boolean
    - Parameters
      value: number
      index: number
      obj: Float64Array
      Returns boolean
- OptionalthisArg: any
  If provided, it will be used as the this value for each invocation of predicate. If it is not provided, undefined is used instead.
Returns number

findIndex

findIndex(predicate, thisArg?): number
Returns the index of the first element in the array where predicate is true, and -1 otherwise.
Parameters
- predicate: ((value: number, index: number, obj: Float64Array) => boolean)
  find calls predicate once for each element of the array, in ascending order, until it finds one where predicate returns true. If such an element is found, findIndex immediately returns that element index. Otherwise, findIndex returns -1.
  - - (value, index, obj): boolean
    - Parameters
      value: number
      index: number
      obj: Float64Array
      Returns boolean
- OptionalthisArg: any
  If provided, it will be used as the this value for each invocation of predicate. If it is not provided, undefined is used instead.
Returns number

findLast

findLast<S>(predicate, thisArg?): S
Returns the value of the last element in the array where predicate is true, and undefined otherwise.
Type Parameters
- S extends number
Parameters
- predicate: ((value: number, index: number, array: Float64Array) => value is S)
  findLast calls predicate once for each element of the array, in descending order, until it finds one where predicate returns true. If such an element is found, findLast immediately returns that element value. Otherwise, findLast returns undefined.
  - - (value, index, array): value is S
    - Parameters
      value: number
      index: number
      array: Float64Array
      Returns value is S
- OptionalthisArg: any
  If provided, it will be used as the this value for each invocation of predicate. If it is not provided, undefined is used instead.
Returns S
findLast(predicate, thisArg?): number
Parameters
- predicate: ((value: number, index: number, array: Float64Array) => unknown)
  - - (value, index, array): unknown
    - Parameters
      value: number
      index: number
      array: Float64Array
      Returns unknown
- OptionalthisArg: any
Returns number

findLastIndex

findLastIndex(predicate, thisArg?): number
Returns the index of the last element in the array where predicate is true, and -1 otherwise.
Parameters
- predicate: ((value: number, index: number, array: Float64Array) => unknown)
  findLastIndex calls predicate once for each element of the array, in descending order, until it finds one where predicate returns true. If such an element is found, findLastIndex immediately returns that element index. Otherwise, findLastIndex returns -1.
  - - (value, index, array): unknown
    - Parameters
      value: number
      index: number
      array: Float64Array
      Returns unknown
- OptionalthisArg: any
  If provided, it will be used as the this value for each invocation of predicate. If it is not provided, undefined is used instead.
Returns number

forEach

forEach(callbackfn, thisArg?): void
Performs the specified action for each element in an array.
Parameters
- callbackfn: ((value: number, index: number, array: Float64Array) => void)
  A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array.
  - - (value, index, array): void
    - Parameters
      value: number
      index: number
      array: Float64Array
      Returns void
- OptionalthisArg: any
  An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
Returns void

includes

includes(searchElement, fromIndex?): boolean
Determines whether an array includes a certain element, returning true or false as appropriate.
Parameters
- searchElement: number
  The element to search for.
- OptionalfromIndex: number
  The position in this array at which to begin searching for searchElement.
Returns boolean

indexOf

indexOf(searchElement, fromIndex?): number
Returns the index of the first occurrence of a value in an array.
Parameters
- searchElement: number
  The value to locate in the array.
- OptionalfromIndex: number
  The array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.
Returns number

join

join(separator?): string
Adds all the elements of an array separated by the specified separator string.
Parameters
- Optionalseparator: string
  A string used to separate one element of an array from the next in the resulting String. If omitted, the array elements are separated with a comma.
Returns string

keys

keys(): ArrayIterator<number>
Returns an list of keys in the array

Returns ArrayIterator<number>

lastIndexOf

lastIndexOf(searchElement, fromIndex?): number
Returns the index of the last occurrence of a value in an array.
Parameters
- searchElement: number
  The value to locate in the array.
- OptionalfromIndex: number
  The array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.
Returns number

map

map(callbackfn, thisArg?): Float64Array
Calls a defined callback function on each element of an array, and returns an array that contains the results.
Parameters
- callbackfn: ((value: number, index: number, array: Float64Array) => number)
  A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
  - - (value, index, array): number
    - Parameters
      value: number
      index: number
      array: Float64Array
      Returns number
- OptionalthisArg: any
  An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
Returns Float64Array

reduce

reduce(callbackfn): number
Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
Parameters
- callbackfn: ((previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number)
  A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
  - - (previousValue, currentValue, currentIndex, array): number
    - Parameters
      previousValue: number
      currentValue: number
      currentIndex: number
      array: Float64Array
      Returns number
Returns number
reduce(callbackfn, initialValue): number
Parameters
- callbackfn: ((previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number)
  - - (previousValue, currentValue, currentIndex, array): number
    - Parameters
      previousValue: number
      currentValue: number
      currentIndex: number
      array: Float64Array
      Returns number
- initialValue: number
Returns number
reduce<U>(callbackfn, initialValue): U
Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
Type Parameters
- U
Parameters
- callbackfn: ((previousValue: U, currentValue: number, currentIndex: number, array: Float64Array) => U)
  A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
  - - (previousValue, currentValue, currentIndex, array): U
    - Parameters
      previousValue: U
      currentValue: number
      currentIndex: number
      array: Float64Array
      Returns U
- initialValue: U
  If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
Returns U

reduceRight

reduceRight(callbackfn): number
Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
Parameters
- callbackfn: ((previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number)
  A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.
  - - (previousValue, currentValue, currentIndex, array): number
    - Parameters
      previousValue: number
      currentValue: number
      currentIndex: number
      array: Float64Array
      Returns number
Returns number
reduceRight(callbackfn, initialValue): number
Parameters
- callbackfn: ((previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number)
  - - (previousValue, currentValue, currentIndex, array): number
    - Parameters
      previousValue: number
      currentValue: number
      currentIndex: number
      array: Float64Array
      Returns number
- initialValue: number
Returns number
reduceRight<U>(callbackfn, initialValue): U
Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
Type Parameters
- U
Parameters
- callbackfn: ((previousValue: U, currentValue: number, currentIndex: number, array: Float64Array) => U)
  A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.
  - - (previousValue, currentValue, currentIndex, array): U
    - Parameters
      previousValue: U
      currentValue: number
      currentIndex: number
      array: Float64Array
      Returns U
- initialValue: U
  If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
Returns U

reverse

reverse(): Float64Array
Reverses the elements in an Array.

Returns Float64Array

set

set(array, offset?): void
Sets a value or an array of values.
Parameters
- array: ArrayLike<number>
  A typed or untyped array of values to set.
- Optionaloffset: number
  The index in the current array at which the values are to be written.
Returns void

slice

slice(start?, end?): Float64Array
Returns a section of an array.
Parameters
- Optionalstart: number
  The beginning of the specified portion of the array.
- Optionalend: number
  The end of the specified portion of the array. This is exclusive of the element at the index 'end'.
Returns Float64Array

some

some(predicate, thisArg?): boolean
Determines whether the specified callback function returns true for any element of an array.
Parameters
- predicate: ((value: number, index: number, array: Float64Array) => unknown)
  A function that accepts up to three arguments. The some method calls the predicate function for each element in the array until the predicate returns a value which is coercible to the Boolean value true, or until the end of the array.
  - - (value, index, array): unknown
    - Parameters
      value: number
      index: number
      array: Float64Array
      Returns unknown
- OptionalthisArg: any
  An object to which the this keyword can refer in the predicate function. If thisArg is omitted, undefined is used as the this value.
Returns boolean

sort

sort(compareFn?): this
Sorts an array.
Parameters
- OptionalcompareFn: ((a: number, b: number) => number)
  Function used to determine the order of the elements. It is expected to return a negative value if first argument is less than second argument, zero if they're equal and a positive value otherwise. If omitted, the elements are sorted in ascending order.
```
[11,2,22,1].sort((a, b) => a - b)
```
  - - (a, b): number
    - Parameters
      a: number
      b: number
      Returns number
Returns this

subarray

subarray(begin?, end?): Float64Array
Gets a new Float64Array view of the ArrayBuffer store for this array, referencing the elements at begin, inclusive, up to end, exclusive.
Parameters
- Optionalbegin: number
  The index of the beginning of the array.
- Optionalend: number
  The index of the end of the array.
Returns Float64Array

toLocaleString

toLocaleString(): string
Converts a number to a string by using the current locale.

Returns string
toLocaleString(locales, options?): string
Parameters
- locales: string | string[]
- Optionaloptions: NumberFormatOptions
Returns string

toReversed

toReversed(): Float64Array
Copies the array and returns the copy with the elements in reverse order.

Returns Float64Array

toSorted

toSorted(compareFn?): Float64Array
Copies and sorts the array.
Parameters
- OptionalcompareFn: ((a: number, b: number) => number)
  Function used to determine the order of the elements. It is expected to return a negative value if the first argument is less than the second argument, zero if they're equal, and a positive value otherwise. If omitted, the elements are sorted in ascending order.
```
const myNums = Float64Array.from([11.25, 2, -22.5, 1]);
myNums.toSorted((a, b) => a - b) // Float64Array(4) [-22.5, 1, 2, 11.5]
```
  - - (a, b): number
    - Parameters
      a: number
      b: number
      Returns number
Returns Float64Array

toString

toString(): string
Returns a string representation of an array.

Returns string

valueOf

valueOf(): Float64Array
Returns the primitive value of the specified object.

Returns Float64Array

values

values(): ArrayIterator<number>
Returns an list of values in the array

Returns ArrayIterator<number>

with

with(index, value): Float64Array
Copies the array and inserts the given number at the provided index.
Parameters
- index: number
  The index of the value to overwrite. If the index is negative, then it replaces from the end of the array.
- value: number
  The value to insert into the copied array.
Returns Float64Array
A copy of the original array with the inserted value.

Interface Float64Array

Indexable

Index

Properties

Methods

Properties

Readonly[toStringTag]

Readonlybuffer

ReadonlybyteLength

ReadonlybyteOffset

ReadonlyBYTES_PER_ELEMENT

Readonlylength

Methods

[iterator]

Returns ArrayIterator<number>

at

Parameters

Returns number

copyWithin

Parameters

Returns this

entries

Returns ArrayIterator<[number, number]>

every

Parameters

Parameters

Returns unknown

Returns boolean

fill

Parameters

Returns this

filter

Parameters

Parameters

Returns any

Returns Float64Array

find

Parameters

Parameters

Returns boolean

Returns number

findIndex

Parameters

Parameters

Returns boolean

Returns number

findLast

Type Parameters

Parameters

Parameters

Returns value is S

Returns S

Parameters

Parameters

Returns unknown

Returns number

findLastIndex

Parameters

Parameters

Returns unknown

Returns number

forEach

Parameters

Parameters

Returns void

Returns void

includes

Parameters

Returns boolean

indexOf

Parameters

Returns number

join

Parameters

Returns string

keys

Returns ArrayIterator<number>

lastIndexOf

Parameters

Returns number

`Readonly`[toStringTag]

`Readonly`buffer

`Readonly`byteLength

`Readonly`byteOffset

`Readonly`BYTES_PER_ELEMENT

`Readonly`length