History

Type parameters

▪ T

▪ T

▪ T

▪ T

▪ T

▪ T

▪ T

▪ T

▪ T

▪ T

Hierarchy

• Array

• Array

  ↳ History

Indexable

• [ n: number]: T

Index

Constructors

• constructor

Properties

• length
• Array

Methods

• [Symbol.iterator]
• [Symbol.unscopables]
• concat
• copyWithin
• entries
• every
• fill
• filter
• find
• findIndex
• forEach
• getInitializingMessage
• includes
• indexOf
• join
• keys
• lastIndexOf
• map
• pop
• push
• reduce
• reduceRight
• reverse
• shift
• slice
• some
• sort
• splice
• toLocaleString
• toString
• unshift
• values

Constructors

constructor

+ new History(events: Event[]): History

Creates an instance of History. Creates an instance of History.

Parameters:

Name	Type	Description
events	Event[]	List of all events that already happen on EventSourceable.

Returns: History

Properties

length

• length: number

Inherited from List.length

Overrides List.length

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

---

Static Array

▪ Array: ArrayConstructor

Methods

[Symbol.iterator]

▸ [Symbol.iterator](): IterableIterator‹T›

Inherited from List.[Symbol.iterator]

Overrides List.[Symbol.iterator]

Iterator

Returns: IterableIterator‹T›

---

[Symbol.unscopables]

▸ [Symbol.unscopables](): object

Inherited from List.[Symbol.unscopables]

Overrides List.[Symbol.unscopables]

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

▸ concat(...items: ConcatArray‹T›[]): T[]

Inherited from List.concat

Overrides List.concat

Combines two or more arrays.

Parameters:

Name	Type	Description
...items	ConcatArray‹T›[]	Additional items to add to the end of array1.

Returns: T[]

▸ concat(...items: T | ConcatArray‹T›[]): T[]

Inherited from List.concat

Overrides List.concat

Combines two or more arrays.

Parameters:

Name	Type	Description
...items	T | ConcatArray‹T›[]	Additional items to add to the end of array1.

Returns: T[]

---

copyWithin

▸ copyWithin(target: number, start: number, end?: number): this

Inherited from List.copyWithin

Overrides List.copyWithin

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:

Name	Type	Description
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.
end?	number	If not specified, length of the this object is used as its default value.

Returns: this

---

entries

▸ entries(): IterableIterator‹[number, T]›

Inherited from List.entries

Overrides List.entries

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

Returns: IterableIterator‹[number, T]›

---

every

▸ every(callbackfn: function, thisArg?: any): boolean

Inherited from List.every

Overrides List.every

Determines whether all the members of an array satisfy the specified test.

Parameters:

▪ callbackfn: function

A function that accepts up to three arguments. The every method calls the callbackfn function for each element in the array until the callbackfn returns a value which is coercible to the Boolean value false, or until the end of the array.

▸ (value: T, index: number, array: T[]): unknown

Parameters:

Name	Type
value	T
index	number
array	T[]

▪Optional thisArg: 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: boolean

---

fill

▸ fill(value: T, start?: number, end?: number): this

Inherited from List.fill

Overrides List.fill

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

Parameters:

Name	Type	Description
value	T	value to fill array section with
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.
end?	number	index to stop filling the array at. If end is negative, it is treated as length+end.

Returns: this

---

filter

▸ filter‹S›(callbackfn: function, thisArg?: any): S[]

Inherited from List.filter

Overrides List.filter

Returns the elements of an array that meet the condition specified in a callback function.

Type parameters:

▪ S: T

Parameters:

▪ callbackfn: function

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

▸ (value: T, index: number, array: T[]): value is S

Parameters:

Name	Type
value	T
index	number
array	T[]

▪Optional thisArg: 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: S[]

▸ filter(callbackfn: function, thisArg?: any): T[]

Inherited from List.filter

Overrides List.filter

Returns the elements of an array that meet the condition specified in a callback function.

Parameters:

▪ callbackfn: function

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

▸ (value: T, index: number, array: T[]): unknown

Parameters:

Name	Type
value	T
index	number
array	T[]

▪Optional thisArg: 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: T[]

---

find

▸ find‹S›(predicate: function, thisArg?: any): S | undefined

Inherited from List.find

Overrides List.find

Returns the value of the first element in the array where predicate is true, and undefined otherwise.

Type parameters:

▪ S: T

Parameters:

▪ predicate: function

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.

▸ (this: void, value: T, index: number, obj: T[]): value is S

Parameters:

Name	Type
this	void
value	T
index	number
obj	T[]

▪Optional thisArg: 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 | undefined

▸ find(predicate: function, thisArg?: any): T | undefined

Inherited from List.find

Overrides List.find

Parameters:

▪ predicate: function

▸ (value: T, index: number, obj: T[]): unknown

Parameters:

Name	Type
value	T
index	number
obj	T[]

▪Optional thisArg: any

Returns: T | undefined

---

findIndex

▸ findIndex(predicate: function, thisArg?: any): number

Inherited from List.findIndex

Overrides List.findIndex

Returns the index of the first element in the array where predicate is true, and -1 otherwise.

Parameters:

▪ predicate: function

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: T, index: number, obj: T[]): unknown

Parameters:

Name	Type
value	T
index	number
obj	T[]

▪Optional thisArg: 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: function, thisArg?: any): void

Inherited from List.forEach

Overrides List.forEach

Performs the specified action for each element in an array.

Parameters:

▪ callbackfn: function

A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array.

▸ (value: T, index: number, array: T[]): void

Parameters:

Name	Type
value	T
index	number
array	T[]

▪Optional thisArg: 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

---

getInitializingMessage

▸ getInitializingMessage(): Event

Returns initializing message.

Returns: Event

Returns initializing message as instance implementing Event interface.

---

includes

▸ includes(searchElement: T, fromIndex?: number): boolean

Inherited from List.includes

Overrides List.includes

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

Parameters:

Name	Type	Description
searchElement	T	The element to search for.
fromIndex?	number	The position in this array at which to begin searching for searchElement.

Returns: boolean

---

indexOf

▸ indexOf(searchElement: T, fromIndex?: number): number

Inherited from List.indexOf

Overrides List.indexOf

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

Parameters:

Name	Type	Description
searchElement	T	The value to locate in the array.
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

Inherited from List.join

Overrides List.join

Adds all the elements of an array separated by the specified separator string.

Parameters:

Name	Type	Description
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›

Inherited from List.keys

Overrides List.keys

Returns an iterable of keys in the array

Returns: IterableIterator‹number›

---

lastIndexOf

▸ lastIndexOf(searchElement: T, fromIndex?: number): number

Inherited from List.lastIndexOf

Overrides List.lastIndexOf

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

Parameters:

Name	Type	Description
searchElement	T	The value to locate in the array.
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

▸ map‹U›(callbackfn: function, thisArg?: any): U[]

Inherited from List.map

Overrides List.map

Calls a defined callback function on each element of an array, and returns an array that contains the results.

Type parameters:

▪ U

Parameters:

▪ callbackfn: function

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

▸ (value: T, index: number, array: T[]): U

Parameters:

Name	Type
value	T
index	number
array	T[]

▪Optional thisArg: 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: U[]

---

pop

▸ pop(): T | undefined

Inherited from List.pop

Overrides List.pop

Removes the last element from an array and returns it.

Returns: T | undefined

---

push

▸ push(...items: T[]): number

Inherited from List.push

Overrides List.push

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

Parameters:

Name	Type	Description
...items	T[]	New elements of the Array.

Returns: number

---

reduce

▸ reduce(callbackfn: function): T

Inherited from List.reduce

Overrides List.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:

▪ 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.

▸ (previousValue: T, currentValue: T, currentIndex: number, array: T[]): T

Parameters:

Name	Type
previousValue	T
currentValue	T
currentIndex	number
array	T[]

Returns: T

▸ reduce(callbackfn: function, initialValue: T): T

Inherited from List.reduce

Overrides List.reduce

Parameters:

▪ callbackfn: function

▸ (previousValue: T, currentValue: T, currentIndex: number, array: T[]): T

Parameters:

Name	Type
previousValue	T
currentValue	T
currentIndex	number
array	T[]

▪ initialValue: T

Returns: T

▸ reduce‹U›(callbackfn: function, initialValue: U): U

Inherited from List.reduce

Overrides List.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.

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.

▸ (previousValue: U, currentValue: T, currentIndex: number, array: T[]): U

Parameters:

Name	Type
previousValue	U
currentValue	T
currentIndex	number
array	T[]

▪ 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: function): T

Inherited from List.reduceRight

Overrides List.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:

▪ 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.

▸ (previousValue: T, currentValue: T, currentIndex: number, array: T[]): T

Parameters:

Name	Type
previousValue	T
currentValue	T
currentIndex	number
array	T[]

Returns: T

▸ reduceRight(callbackfn: function, initialValue: T): T

Inherited from List.reduceRight

Overrides List.reduceRight

Parameters:

▪ callbackfn: function

▸ (previousValue: T, currentValue: T, currentIndex: number, array: T[]): T

Parameters:

Name	Type
previousValue	T
currentValue	T
currentIndex	number
array	T[]

▪ initialValue: T

Returns: T

▸ reduceRight‹U›(callbackfn: function, initialValue: U): U

Inherited from List.reduceRight

Overrides List.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.

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.

▸ (previousValue: U, currentValue: T, currentIndex: number, array: T[]): U

Parameters:

Name	Type
previousValue	U
currentValue	T
currentIndex	number
array	T[]

▪ 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(): T[]

Inherited from List.reverse

Overrides List.reverse

Reverses the elements in an Array.

Returns: T[]

---

shift

▸ shift(): T | undefined

Inherited from List.shift

Overrides List.shift

Removes the first element from an array and returns it.

Returns: T | undefined

---

slice

▸ slice(start?: number, end?: number): T[]

Inherited from List.slice

Overrides List.slice

Returns a section of an array.

Parameters:

Name	Type	Description
start?	number	The beginning of the specified portion of the array.
end?	number	The end of the specified portion of the array. This is exclusive of the element at the index 'end'.

Returns: T[]

---

some

▸ some(callbackfn: function, thisArg?: any): boolean

Inherited from List.some

Overrides List.some

Determines whether the specified callback function returns true for any element of an array.

Parameters:

▪ callbackfn: function

A function that accepts up to three arguments. The some method calls the callbackfn function for each element in the array until the callbackfn returns a value which is coercible to the Boolean value true, or until the end of the array.

▸ (value: T, index: number, array: T[]): unknown

Parameters:

Name	Type
value	T
index	number
array	T[]

▪Optional thisArg: 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: boolean

---

sort

▸ sort(compareFn?: function): this

Inherited from List.sort

Overrides List.sort

Sorts an array.

Parameters:

▪Optional compareFn: function

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, ASCII character order.

[11,2,22,1].sort((a, b) => a - b)

▸ (a: T, b: T): number

Parameters:

Name	Type
a	T
b	T

Returns: this

---

splice

▸ splice(start: number, deleteCount?: number): T[]

Inherited from List.splice

Overrides List.splice

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

Parameters:

Name	Type	Description
start	number	The zero-based location in the array from which to start removing elements.
deleteCount?	number	The number of elements to remove.

Returns: T[]

▸ splice(start: number, deleteCount: number, ...items: T[]): T[]

Inherited from List.splice

Overrides List.splice

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

Parameters:

Name	Type	Description
start	number	The zero-based location in the array from which to start removing elements.
deleteCount	number	The number of elements to remove.
...items	T[]	Elements to insert into the array in place of the deleted elements.

Returns: T[]

---

toLocaleString

▸ toLocaleString(): string

Inherited from List.toLocaleString

Overrides List.toLocaleString

Returns a string representation of an array. The elements are converted to string using their toLocalString methods.

Returns: string

---

toString

▸ toString(): string

Inherited from List.toString

Overrides List.toString

Returns a string representation of an array.

Returns: string

---

unshift

▸ unshift(...items: T[]): number

Inherited from List.unshift

Overrides List.unshift

Inserts new elements at the start of an array.

Parameters:

Name	Type	Description
...items	T[]	Elements to insert at the start of the Array.

Returns: number

---

values

▸ values(): IterableIterator‹T›

Inherited from List.values

Overrides List.values

Returns an iterable of values in the array

Returns: IterableIterator‹T›