name: Justification

description: A generic justification as a stream of Bytes, this is specific per consensus implementation

Hierarchy

↳ Bytes

↳ Justification

Implements

Indexable

[index: number]: number

Constructors

constructor

⊕ new Justification(value: AnyU8a): Justification

Inherited from Bytes.constructor

Overrides U8a.constructor

Defined in Bytes.ts:18

Parameters:

Name Type
value AnyU8a

Returns: Justification

Properties

BYTES_PER_ELEMENT

● BYTES_PER_ELEMENT: number

Inherited from Uint8Array.BYTES_PER_ELEMENT

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:1946

The size in bytes of each element in the array.

__@toStringTag

● __@toStringTag: "UInt8Array"

Inherited from Uint8Array.[Symbol.toStringTag]

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.symbol.wellknown.d.ts:276

buffer

● buffer: ArrayBufferLike

Inherited from Uint8Array.buffer

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:1951

The ArrayBuffer instance referenced by the array.

byteLength

● byteLength: number

Inherited from Uint8Array.byteLength

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:1956

The length in bytes of the array.

byteOffset

● byteOffset: number

Inherited from Uint8Array.byteOffset

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:1961

The offset in bytes of the array.

Accessors

encodedLength

getencodedLength(): number

Inherited from Bytes.encodedLength

Overrides U8a.encodedLength

Defined in Bytes.ts:64

description: The length of the value when encoded as a Uint8Array

Returns: number

length

getlength(): number

Inherited from U8a.length

Overrides Uint8Array.length

Defined in codec/U8a.ts:43

description: The length of the value

Returns: number

Methods

__@iterator

▸ __@iterator(): IterableIterator<number>

Inherited from Uint8Array.[Symbol.iterator]

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.iterable.d.ts:267

Returns: IterableIterator<number>

copyWithin

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

Inherited from Uint8Array.copyWithin

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:1972

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.
Optional end undefined | number If not specified, length of the this object is used as its default value.

Returns: this

entries

▸ entries(): IterableIterator<[number, number]>

Inherited from Uint8Array.entries

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.iterable.d.ts:271

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

Returns: IterableIterator<[number, number]>

every

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

Inherited from Uint8Array.every

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:1982

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

Parameters:

Name Type Description
callbackfn function A function that accepts up to three arguments. The every method calls the callbackfn function for each element in array1 until the callbackfn returns false, or until the end of the array.
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: number, start?: undefined | number, end?: undefined | number): this

Inherited from Uint8Array.fill

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:1992

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

Parameters:

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

Returns: this

filter

▸ filter(callbackfn: function, thisArg?: any): Uint8Array

Inherited from Uint8Array.filter

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2001

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

Parameters:

Name Type Description
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.
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: Uint8Array

find

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

Inherited from Uint8Array.find

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2012

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

Parameters:

Name Type Description
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.
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 | undefined

findIndex

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

Inherited from Uint8Array.findIndex

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2023

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

Parameters:

Name Type Description
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.
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 Uint8Array.forEach

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2032

Performs the specified action for each element in an array.

Parameters:

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

includes

▸ includes(searchElement: number, fromIndex?: undefined | number): boolean

Inherited from Uint8Array.includes

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2016.array.include.d.ts:54

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

Parameters:

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

Returns: boolean

indexOf

▸ indexOf(searchElement: number, fromIndex?: undefined | number): number

Inherited from Uint8Array.indexOf

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2040

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

Parameters:

Name Type Description
searchElement number The value to locate in the array.
Optional fromIndex undefined | 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?: undefined | string): string

Inherited from Uint8Array.join

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2047

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

Parameters:

Name Type Description
Optional separator undefined | 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 Uint8Array.keys

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.iterable.d.ts:275

Returns an list of keys in the array

Returns: IterableIterator<number>

lastIndexOf

▸ lastIndexOf(searchElement: number, fromIndex?: undefined | number): number

Inherited from Uint8Array.lastIndexOf

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2055

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

Parameters:

Name Type Description
searchElement number The value to locate in the array.
Optional fromIndex undefined | 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: function, thisArg?: any): Uint8Array

Inherited from Uint8Array.map

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2070

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

Parameters:

Name Type Description
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.
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: Uint8Array

reduce

▸ reduce(callbackfn: function): number

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

▸ reduce<U>(callbackfn: function, initialValue: U): U

Inherited from Uint8Array.reduce

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2082

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:

Name Type Description
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.

Returns: number

Inherited from Uint8Array.reduce

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2083

Parameters:

Name Type
callbackfn function
initialValue number

Returns: number

Inherited from Uint8Array.reduce

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2095

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:

Name Type Description
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

▸ reduceRight(callbackfn: function): number

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

▸ reduceRight<U>(callbackfn: function, initialValue: U): U

Inherited from Uint8Array.reduceRight

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2107

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:

Name Type Description
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.

Returns: number

Inherited from Uint8Array.reduceRight

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2108

Parameters:

Name Type
callbackfn function
initialValue number

Returns: number

Inherited from Uint8Array.reduceRight

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2120

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:

Name Type Description
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

▸ reverse(): Uint8Array

Inherited from Uint8Array.reverse

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2125

Reverses the elements in an Array.

Returns: Uint8Array

set

▸ set(array: ArrayLike<number>, offset?: undefined | number): void

Inherited from Uint8Array.set

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2132

Sets a value or an array of values.

Parameters:

Name Type Description
array ArrayLike<number> A typed or untyped array of values to set.
Optional offset undefined | number The index in the current array at which the values are to be written.

Returns: void

slice

▸ slice(start?: undefined | number, end?: undefined | number): Uint8Array

Inherited from Uint8Array.slice

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2139

Returns a section of an array.

Parameters:

Name Type Description
Optional start undefined | number The beginning of the specified portion of the array.
Optional end undefined | number The end of the specified portion of the array.

Returns: Uint8Array

some

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

Inherited from Uint8Array.some

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2149

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

Parameters:

Name Type Description
callbackfn function A function that accepts up to three arguments. The some method calls the callbackfn function for each element in array1 until the callbackfn returns true, or until the end of the array.
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?: undefined | function): this

Inherited from Uint8Array.sort

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2156

Sorts an array.

Parameters:

Name Type Description
Optional compareFn undefined | function The name of the function used to determine the order of the elements. If omitted, the elements are sorted in ascending, ASCII character order.

Returns: this

subarray

▸ subarray(begin: number, end?: undefined | number): Uint8Array

Inherited from U8a.subarray

Overrides Uint8Array.subarray

Defined in codec/U8a.ts:53

description: Create a new subarray from the actual buffer. This is needed for compat reasons since a new Uint8Array gets returned here

Parameters:

Name Type Description
begin number The position to start at
Optional end undefined | number The position to end at

Returns: Uint8Array

toHex

▸ toHex(): string

Implementation of Codec.toHex

Inherited from U8a.toHex

Defined in codec/U8a.ts:60

description: Returns a hex string representation of the value

Returns: string

toJSON

▸ toJSON(): any

Implementation of Codec.toJSON

Inherited from U8a.toJSON

Defined in codec/U8a.ts:67

description: Converts the Object to JSON, typically used for RPC transfers

Returns: any

toLocaleString

▸ toLocaleString(): string

Inherited from Uint8Array.toLocaleString

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es5.d.ts:2169

Converts a number to a string by using the current locale.

Returns: string

toString

▸ toString(): string

Implementation of Codec.toString

Inherited from U8a.toString

Overrides Uint8Array.toString

Defined in codec/U8a.ts:74

description: Returns the string representation of the value

Returns: string

toU8a

▸ toU8a(isBare?: undefined | false | true): Uint8Array

Implementation of Codec.toU8a

Inherited from Bytes.toU8a

Overrides U8a.toU8a

Defined in Bytes.ts:72

description: Encodes the value as a Uint8Array as per the parity-codec specifications

Parameters:

Name Type Description
Optional isBare undefined | false | true true when the value has none of the type-specific prefixes (internal)

Returns: Uint8Array

values

▸ values(): IterableIterator<number>

Inherited from Uint8Array.values

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.iterable.d.ts:279

Returns an list of values in the array

Returns: IterableIterator<number>

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