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Properties

Array

Array: ArrayConstructor

length

length: number

Gets or sets the length of the array. This is a number one higher than the highest element defined in an array.

Methods

__@iterator

  • Iterator

    Returns IterableIterator<SubscriptionsSubscription>

__@unscopables

  • __@unscopables(): object
  • Returns an object whose properties have the value 'true' when they will be absent when used in a 'with' statement.

    Returns object

    • copyWithin: boolean
    • entries: boolean
    • fill: boolean
    • find: boolean
    • findIndex: boolean
    • keys: boolean
    • values: boolean

concat

  • Combines two or more arrays.

    Parameters

    Returns SubscriptionsSubscription[]

  • Combines two or more arrays.

    Parameters

    • Rest ...items: (T[] | T)[]

      Additional items to add to the end of array1.

    Returns SubscriptionsSubscription[]

copyWithin

  • copyWithin(target: number, start: number, end?: number): 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.

    • Optional end: number

      If not specified, length of the this object is used as its default value.

    Returns this

entries

  • Returns an array of key, value pairs for every entry in the array

    Returns IterableIterator<[number, SubscriptionsSubscription]>

every

  • every(callbackfn: function): boolean
  • every(callbackfn: function, thisArg: undefined): boolean
  • every<Z>(callbackfn: function, thisArg: Z): boolean
  • Determines whether all the members of an array satisfy the specified test.

    Parameters

    Returns boolean

  • Parameters

    Returns boolean

  • Type parameters

    • Z

    Parameters

    Returns boolean

fill

  • Returns the this object after filling the section identified by start and end with value

    Parameters

    • value: SubscriptionsSubscription

      value to fill array section with

    • Optional start: 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.

    • Optional end: number

      index to stop filling the array at. If end is negative, it is treated as length+end.

    Returns this

filter

find

findIndex

  • findIndex(predicate: function): number
  • findIndex(predicate: function, thisArg: undefined): number
  • findIndex<Z>(predicate: function, thisArg: Z): number
  • Returns the index of the first element in the array where predicate is true, and -1 otherwise.

    Parameters

    Returns number

  • Parameters

    Returns number

  • Type parameters

    • Z

    Parameters

    Returns number

forEach

  • forEach(callbackfn: function): void
  • forEach(callbackfn: function, thisArg: undefined): void
  • forEach<Z>(callbackfn: function, thisArg: Z): void

includes

  • Determines whether an array includes a certain element, returning true or false as appropriate.

    Parameters

    • searchElement: SubscriptionsSubscription

      The element to search for.

    • Optional fromIndex: number

      The position in this array at which to begin searching for searchElement.

    Returns boolean

indexOf

  • Returns the index of the first occurrence of a value in an array.

    Parameters

    • searchElement: SubscriptionsSubscription

      The value to locate in the array.

    • Optional fromIndex: 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): string
  • Adds all the elements of an array separated by the specified separator string.

    Parameters

    • Optional separator: 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(): IterableIterator<number>
  • Returns an list of keys in the array

    Returns IterableIterator<number>

lastIndexOf

  • Returns the index of the last occurrence of a specified value in an array.

    Parameters

    • searchElement: SubscriptionsSubscription

      The value to locate in the array.

    • Optional fromIndex: number

      The array index at which to begin the search. If fromIndex is omitted, the search starts at the last index in the array.

    Returns number

map

pop

  • Removes the last element from an array and returns it.

    Returns SubscriptionsSubscription | undefined

push

  • Appends new elements to an array, and returns the new length of the array.

    Parameters

    Returns number

reduce

  • 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

    Returns SubscriptionsSubscription

  • 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: function

      A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.

    • 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

  • 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

    Returns SubscriptionsSubscription

  • 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: function

      A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.

    • 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

  • Reverses the elements in an Array.

    Returns SubscriptionsSubscription[]

shift

  • Removes the first element from an array and returns it.

    Returns SubscriptionsSubscription | undefined

slice

  • Returns a section of an array.

    Parameters

    • Optional start: number

      The beginning of the specified portion of the array.

    • Optional end: number

      The end of the specified portion of the array.

    Returns SubscriptionsSubscription[]

some

  • some(callbackfn: function): boolean
  • some(callbackfn: function, thisArg: undefined): boolean
  • some<Z>(callbackfn: function, thisArg: Z): boolean
  • Determines whether the specified callback function returns true for any element of an array.

    Parameters

    Returns boolean

  • Parameters

    Returns boolean

  • Type parameters

    • Z

    Parameters

    Returns boolean

sort

  • sort(compareFn?: function): this
  • Sorts an array.

    Parameters

    Returns this

splice

  • Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.

    Parameters

    • start: number

      The zero-based location in the array from which to start removing elements.

    • Optional deleteCount: number

      The number of elements to remove.

    Returns SubscriptionsSubscription[]

  • Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.

    Parameters

    • start: number

      The zero-based location in the array from which to start removing elements.

    • deleteCount: number

      The number of elements to remove.

    • Rest ...items: SubscriptionsSubscription[]

      Elements to insert into the array in place of the deleted elements.

    Returns SubscriptionsSubscription[]

toLocaleString

  • toLocaleString(): string
  • Returns string

toString

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

    Returns string

turn

unshift

  • Inserts new elements at the start of an array.

    Parameters

    Returns number

values

  • Returns an list of values in the array

    Returns IterableIterator<SubscriptionsSubscription>