<S extends Iterable<readonly [any, any]>>(
self: S
): S extends NonEmptyReadonlyArray<readonly [infer A, infer B]>
? [NonEmptyArray<A>, NonEmptyArray<B>]
: S extends Iterable<readonly [infer A, infer B]>
? [Array<A>, Array<B>]
: neverSplits an array of pairs into two arrays. Inverse of zip.
Example (Unzipping pairs)
import { Array } from "effect"
console.log(Array.unzip([[1, "a"], [2, "b"], [3, "c"]])) // [[1, 2, 3], ["a", "b", "c"]]zippingzip
Source effect/Array.ts:227517 lines
export const const unzip: <
S extends Iterable<readonly [any, any]>
>(
self: S
) => S extends NonEmptyReadonlyArray<
readonly [infer A, infer B]
>
? [NonEmptyArray<A>, NonEmptyArray<B>]
: S extends Iterable<
readonly [infer A, infer B]
>
? [Array<A>, Array<B>]
: never
Splits an array of pairs into two arrays. Inverse of
zip
.
Example (Unzipping pairs)
import { Array } from "effect"
console.log(Array.unzip([[1, "a"], [2, "b"], [3, "c"]])) // [[1, 2, 3], ["a", "b", "c"]]
unzip: <function (type parameter) S in <S extends Iterable<readonly [any, any]>>(self: S): S extends NonEmptyReadonlyArray<readonly [infer A, infer B]> ? [NonEmptyArray<A>, NonEmptyArray<B>] : S extends Iterable<readonly [infer A, infer B]> ? [Array<A>, Array<B>] : neverS extends interface Iterable<T, TReturn = any, TNext = any>Iterable<readonly [any, any]>>(
self: S extends Iterable<readonly [any, any]>self: function (type parameter) S in <S extends Iterable<readonly [any, any]>>(self: S): S extends NonEmptyReadonlyArray<readonly [infer A, infer B]> ? [NonEmptyArray<A>, NonEmptyArray<B>] : S extends Iterable<readonly [infer A, infer B]> ? [Array<A>, Array<B>] : neverS
) => function (type parameter) S in <S extends Iterable<readonly [any, any]>>(self: S): S extends NonEmptyReadonlyArray<readonly [infer A, infer B]> ? [NonEmptyArray<A>, NonEmptyArray<B>] : S extends Iterable<readonly [infer A, infer B]> ? [Array<A>, Array<B>] : neverS extends type NonEmptyReadonlyArray<A> = readonly [
A,
...A[]
]
A readonly array guaranteed to have at least one element.
When to use
Use when non-emptiness must be tracked at the type level while preventing mutation.
Many Array module functions accept or return this type.
Example (Typing a non-empty array)
import type { Array } from "effect"
const nonEmpty: Array.NonEmptyReadonlyArray<number> = [1, 2, 3]
const head: number = nonEmpty[0] // guaranteed to exist
NonEmptyReadonlyArray<readonly [infer function (type parameter) AA, infer function (type parameter) BB]> ? [type NonEmptyArray<A> = [A, ...A[]]A mutable array guaranteed to have at least one element.
When to use
Use when mutation is acceptable and non-emptiness must be tracked at the type
level.
Details
This is the mutable counterpart of
NonEmptyReadonlyArray
. Most Array
module functions return NonEmptyArray when the result is guaranteed
non-empty.
Example (Typing a mutable non-empty array)
import type { Array } from "effect"
const nonEmpty: Array.NonEmptyArray<number> = [1, 2, 3]
nonEmpty.push(4)
NonEmptyArray<function (type parameter) AA>, type NonEmptyArray<A> = [A, ...A[]]A mutable array guaranteed to have at least one element.
When to use
Use when mutation is acceptable and non-emptiness must be tracked at the type
level.
Details
This is the mutable counterpart of
NonEmptyReadonlyArray
. Most Array
module functions return NonEmptyArray when the result is guaranteed
non-empty.
Example (Typing a mutable non-empty array)
import type { Array } from "effect"
const nonEmpty: Array.NonEmptyArray<number> = [1, 2, 3]
nonEmpty.push(4)
NonEmptyArray<function (type parameter) BB>]
: function (type parameter) S in <S extends Iterable<readonly [any, any]>>(self: S): S extends NonEmptyReadonlyArray<readonly [infer A, infer B]> ? [NonEmptyArray<A>, NonEmptyArray<B>] : S extends Iterable<readonly [infer A, infer B]> ? [Array<A>, Array<B>] : neverS extends interface Iterable<T, TReturn = any, TNext = any>Iterable<readonly [infer function (type parameter) AA, infer function (type parameter) BB]> ? [interface Array<T>Array<function (type parameter) AA>, interface Array<T>Array<function (type parameter) BB>]
: never = (<function (type parameter) A in <A, B>(self: Iterable<readonly [A, B]>): [Array<A>, Array<B>]A, function (type parameter) B in <A, B>(self: Iterable<readonly [A, B]>): [Array<A>, Array<B>]B>(self: Iterable<readonly [A, B]>self: interface Iterable<T, TReturn = any, TNext = any>Iterable<readonly [function (type parameter) A in <A, B>(self: Iterable<readonly [A, B]>): [Array<A>, Array<B>]A, function (type parameter) B in <A, B>(self: Iterable<readonly [A, B]>): [Array<A>, Array<B>]B]>): [interface Array<T>Array<function (type parameter) A in <A, B>(self: Iterable<readonly [A, B]>): [Array<A>, Array<B>]A>, interface Array<T>Array<function (type parameter) B in <A, B>(self: Iterable<readonly [A, B]>): [Array<A>, Array<B>]B>] => {
const const input: (readonly [A, B])[]input = const fromIterable: <readonly [A, B]>(collection: Iterable<readonly [A, B]>) => (readonly [A, B])[]Converts an Iterable to an Array.
When to use
Use to convert any Iterable (Set, Generator, etc.) into an array.
Details
If the input is already an array, this returns it by reference without
copying. Otherwise, it creates a new array from the iterable. Use copy if
you need a fresh array even when the input is already an array.
Example (Converting a Set to an array)
import { Array } from "effect"
const result = Array.fromIterable(new Set([1, 2, 3]))
console.log(result) // [1, 2, 3]
fromIterable(self: Iterable<readonly [A, B]>self)
if (const isReadonlyArrayNonEmpty: <A>(
self: ReadonlyArray<A>
) => self is NonEmptyReadonlyArray<A>
Checks whether a ReadonlyArray is non-empty, narrowing the type to
NonEmptyReadonlyArray.
When to use
Use when you need to prove a readonly array has at least one element without
requiring mutable array methods afterward.
Example (Checking for a non-empty readonly array)
import { Array } from "effect"
console.log(Array.isReadonlyArrayNonEmpty([])) // false
console.log(Array.isReadonlyArrayNonEmpty([1, 2, 3])) // true
isReadonlyArrayNonEmpty(const input: (readonly [A, B])[]input)) {
const const fa: NonEmptyArray<A>const fa: {
0: A;
length: number;
toString: () => string;
toLocaleString: { (): string; (locales: string | string[], options?: Intl.NumberFormatOptions & Intl.DateTimeFormatOptions): string };
pop: () => A | undefined;
push: (...items: Array<A>) => number;
concat: { (...items: Array<ConcatArray<A>>): Array<A>; (...items: Array<A | ConcatArray<A>>): Array<A> };
join: (separator?: string) => string;
reverse: () => Array<A>;
shift: () => A | undefined;
slice: (start?: number, end?: number) => Array<A>;
sort: (compareFn?: ((a: A, b: A) => number) | undefined) => [A, ...A[]];
splice: { (start: number, deleteCount?: number): Array<A>; (start: number, deleteCount: number, ...items: Array<A>): Array<A> };
unshift: (...items: Array<A>) => number;
indexOf: (searchElement: A, fromIndex?: number) => number;
lastIndexOf: (searchElement: A, fromIndex?: number) => number;
every: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): this is S[]; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): boolean };
some: (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any) => boolean;
forEach: (callbackfn: (value: A, index: number, array: Array<A>) => void, thisArg?: any) => void;
map: (callbackfn: (value: A, index: number, array: Array<A>) => U, thisArg?: any) => Array<U>;
filter: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): Array<S>; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): Array<A> };
reduce: { (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A): A; (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A, initialValue: A): A; (callbackfn: (previousVa…;
reduceRight: { (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A): A; (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A, initialValue: A): A; (callbackfn: (previousVa…;
find: { (predicate: (value: A, index: number, obj: Array<A>) => value is S, thisArg?: any): S | undefined; (predicate: (value: A, index: number, obj: Array<A>) => unknown, thisArg?: any): A | undefined };
findIndex: (predicate: (value: A, index: number, obj: Array<A>) => unknown, thisArg?: any) => number;
fill: (value: A, start?: number, end?: number) => [A, ...A[]];
copyWithin: (target: number, start: number, end?: number) => [A, ...A[]];
entries: () => ArrayIterator<[number, A]>;
keys: () => ArrayIterator<number>;
values: () => ArrayIterator<A>;
includes: (searchElement: A, fromIndex?: number) => boolean;
flatMap: (callback: (this: This, value: A, index: number, array: Array<A>) => U | ReadonlyArray<U>, thisArg?: This | undefined) => Array<U>;
flat: (this: A, depth?: D | undefined) => Array<FlatArray<A, D>>;
at: (index: number) => A | undefined;
findLast: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): S | undefined; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): A | undefined };
findLastIndex: (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any) => number;
toReversed: () => Array<A>;
toSorted: (compareFn?: ((a: A, b: A) => number) | undefined) => Array<A>;
toSpliced: { (start: number, deleteCount: number, ...items: Array<A>): Array<A>; (start: number, deleteCount?: number): Array<A> };
with: (index: number, value: A) => Array<A>;
}
type NonEmptyArray<A> = [A, ...A[]]A mutable array guaranteed to have at least one element.
When to use
Use when mutation is acceptable and non-emptiness must be tracked at the type
level.
Details
This is the mutable counterpart of
NonEmptyReadonlyArray
. Most Array
module functions return NonEmptyArray when the result is guaranteed
non-empty.
Example (Typing a mutable non-empty array)
import type { Array } from "effect"
const nonEmpty: Array.NonEmptyArray<number> = [1, 2, 3]
nonEmpty.push(4)
NonEmptyArray<function (type parameter) A in <A, B>(self: Iterable<readonly [A, B]>): [Array<A>, Array<B>]A> = [const input: (readonly [A, B])[] &
readonly [
readonly [A, B],
...(readonly [A, B])[]
]
const fb: NonEmptyArray<B>const fb: {
0: B;
length: number;
toString: () => string;
toLocaleString: { (): string; (locales: string | string[], options?: Intl.NumberFormatOptions & Intl.DateTimeFormatOptions): string };
pop: () => B | undefined;
push: (...items: Array<B>) => number;
concat: { (...items: Array<ConcatArray<B>>): Array<B>; (...items: Array<B | ConcatArray<B>>): Array<B> };
join: (separator?: string) => string;
reverse: () => Array<B>;
shift: () => B | undefined;
slice: (start?: number, end?: number) => Array<B>;
sort: (compareFn?: ((a: B, b: B) => number) | undefined) => [B, ...B[]];
splice: { (start: number, deleteCount?: number): Array<B>; (start: number, deleteCount: number, ...items: Array<B>): Array<B> };
unshift: (...items: Array<B>) => number;
indexOf: (searchElement: B, fromIndex?: number) => number;
lastIndexOf: (searchElement: B, fromIndex?: number) => number;
every: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): this is S[]; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): boolean };
some: (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any) => boolean;
forEach: (callbackfn: (value: B, index: number, array: Array<B>) => void, thisArg?: any) => void;
map: (callbackfn: (value: B, index: number, array: Array<B>) => U, thisArg?: any) => Array<U>;
filter: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): Array<S>; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): Array<B> };
reduce: { (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B): B; (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B, initialValue: B): B; (callbackfn: (previousVa…;
reduceRight: { (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B): B; (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B, initialValue: B): B; (callbackfn: (previousVa…;
find: { (predicate: (value: B, index: number, obj: Array<B>) => value is S, thisArg?: any): S | undefined; (predicate: (value: B, index: number, obj: Array<B>) => unknown, thisArg?: any): B | undefined };
findIndex: (predicate: (value: B, index: number, obj: Array<B>) => unknown, thisArg?: any) => number;
fill: (value: B, start?: number, end?: number) => [B, ...B[]];
copyWithin: (target: number, start: number, end?: number) => [B, ...B[]];
entries: () => ArrayIterator<[number, B]>;
keys: () => ArrayIterator<number>;
values: () => ArrayIterator<B>;
includes: (searchElement: B, fromIndex?: number) => boolean;
flatMap: (callback: (this: This, value: B, index: number, array: Array<B>) => U | ReadonlyArray<U>, thisArg?: This | undefined) => Array<U>;
flat: (this: A, depth?: D | undefined) => Array<FlatArray<A, D>>;
at: (index: number) => B | undefined;
findLast: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): S | undefined; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): B | undefined };
findLastIndex: (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any) => number;
toReversed: () => Array<B>;
toSorted: (compareFn?: ((a: B, b: B) => number) | undefined) => Array<B>;
toSpliced: { (start: number, deleteCount: number, ...items: Array<B>): Array<B>; (start: number, deleteCount?: number): Array<B> };
with: (index: number, value: B) => Array<B>;
}
type NonEmptyArray<A> = [A, ...A[]]A mutable array guaranteed to have at least one element.
When to use
Use when mutation is acceptable and non-emptiness must be tracked at the type
level.
Details
This is the mutable counterpart of
NonEmptyReadonlyArray
. Most Array
module functions return NonEmptyArray when the result is guaranteed
non-empty.
Example (Typing a mutable non-empty array)
import type { Array } from "effect"
const nonEmpty: Array.NonEmptyArray<number> = [1, 2, 3]
nonEmpty.push(4)
NonEmptyArray<function (type parameter) B in <A, B>(self: Iterable<readonly [A, B]>): [Array<A>, Array<B>]B> = [const input: (readonly [A, B])[] &
readonly [
readonly [A, B],
...(readonly [A, B])[]
]
let i: numberi = 1; let i: numberi < const input: (readonly [A, B])[] &
readonly [
readonly [A, B],
...(readonly [A, B])[]
]
Array<T>.length: numberGets or sets the length of the array. This is a number one higher than the highest index in the array.
length; let i: numberi++) {
const fa: NonEmptyArray<A>const fa: {
0: A;
length: number;
toString: () => string;
toLocaleString: { (): string; (locales: string | string[], options?: Intl.NumberFormatOptions & Intl.DateTimeFormatOptions): string };
pop: () => A | undefined;
push: (...items: Array<A>) => number;
concat: { (...items: Array<ConcatArray<A>>): Array<A>; (...items: Array<A | ConcatArray<A>>): Array<A> };
join: (separator?: string) => string;
reverse: () => Array<A>;
shift: () => A | undefined;
slice: (start?: number, end?: number) => Array<A>;
sort: (compareFn?: ((a: A, b: A) => number) | undefined) => [A, ...A[]];
splice: { (start: number, deleteCount?: number): Array<A>; (start: number, deleteCount: number, ...items: Array<A>): Array<A> };
unshift: (...items: Array<A>) => number;
indexOf: (searchElement: A, fromIndex?: number) => number;
lastIndexOf: (searchElement: A, fromIndex?: number) => number;
every: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): this is S[]; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): boolean };
some: (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any) => boolean;
forEach: (callbackfn: (value: A, index: number, array: Array<A>) => void, thisArg?: any) => void;
map: (callbackfn: (value: A, index: number, array: Array<A>) => U, thisArg?: any) => Array<U>;
filter: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): Array<S>; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): Array<A> };
reduce: { (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A): A; (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A, initialValue: A): A; (callbackfn: (previousVa…;
reduceRight: { (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A): A; (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A, initialValue: A): A; (callbackfn: (previousVa…;
find: { (predicate: (value: A, index: number, obj: Array<A>) => value is S, thisArg?: any): S | undefined; (predicate: (value: A, index: number, obj: Array<A>) => unknown, thisArg?: any): A | undefined };
findIndex: (predicate: (value: A, index: number, obj: Array<A>) => unknown, thisArg?: any) => number;
fill: (value: A, start?: number, end?: number) => [A, ...A[]];
copyWithin: (target: number, start: number, end?: number) => [A, ...A[]];
entries: () => ArrayIterator<[number, A]>;
keys: () => ArrayIterator<number>;
values: () => ArrayIterator<A>;
includes: (searchElement: A, fromIndex?: number) => boolean;
flatMap: (callback: (this: This, value: A, index: number, array: Array<A>) => U | ReadonlyArray<U>, thisArg?: This | undefined) => Array<U>;
flat: (this: A, depth?: D | undefined) => Array<FlatArray<A, D>>;
at: (index: number) => A | undefined;
findLast: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): S | undefined; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): A | undefined };
findLastIndex: (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any) => number;
toReversed: () => Array<A>;
toSorted: (compareFn?: ((a: A, b: A) => number) | undefined) => Array<A>;
toSpliced: { (start: number, deleteCount: number, ...items: Array<A>): Array<A>; (start: number, deleteCount?: number): Array<A> };
with: (index: number, value: A) => Array<A>;
}
let i: numberi] = const input: (readonly [A, B])[] &
readonly [
readonly [A, B],
...(readonly [A, B])[]
]
let i: numberi][0]
const fb: NonEmptyArray<B>const fb: {
0: B;
length: number;
toString: () => string;
toLocaleString: { (): string; (locales: string | string[], options?: Intl.NumberFormatOptions & Intl.DateTimeFormatOptions): string };
pop: () => B | undefined;
push: (...items: Array<B>) => number;
concat: { (...items: Array<ConcatArray<B>>): Array<B>; (...items: Array<B | ConcatArray<B>>): Array<B> };
join: (separator?: string) => string;
reverse: () => Array<B>;
shift: () => B | undefined;
slice: (start?: number, end?: number) => Array<B>;
sort: (compareFn?: ((a: B, b: B) => number) | undefined) => [B, ...B[]];
splice: { (start: number, deleteCount?: number): Array<B>; (start: number, deleteCount: number, ...items: Array<B>): Array<B> };
unshift: (...items: Array<B>) => number;
indexOf: (searchElement: B, fromIndex?: number) => number;
lastIndexOf: (searchElement: B, fromIndex?: number) => number;
every: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): this is S[]; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): boolean };
some: (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any) => boolean;
forEach: (callbackfn: (value: B, index: number, array: Array<B>) => void, thisArg?: any) => void;
map: (callbackfn: (value: B, index: number, array: Array<B>) => U, thisArg?: any) => Array<U>;
filter: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): Array<S>; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): Array<B> };
reduce: { (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B): B; (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B, initialValue: B): B; (callbackfn: (previousVa…;
reduceRight: { (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B): B; (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B, initialValue: B): B; (callbackfn: (previousVa…;
find: { (predicate: (value: B, index: number, obj: Array<B>) => value is S, thisArg?: any): S | undefined; (predicate: (value: B, index: number, obj: Array<B>) => unknown, thisArg?: any): B | undefined };
findIndex: (predicate: (value: B, index: number, obj: Array<B>) => unknown, thisArg?: any) => number;
fill: (value: B, start?: number, end?: number) => [B, ...B[]];
copyWithin: (target: number, start: number, end?: number) => [B, ...B[]];
entries: () => ArrayIterator<[number, B]>;
keys: () => ArrayIterator<number>;
values: () => ArrayIterator<B>;
includes: (searchElement: B, fromIndex?: number) => boolean;
flatMap: (callback: (this: This, value: B, index: number, array: Array<B>) => U | ReadonlyArray<U>, thisArg?: This | undefined) => Array<U>;
flat: (this: A, depth?: D | undefined) => Array<FlatArray<A, D>>;
at: (index: number) => B | undefined;
findLast: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): S | undefined; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): B | undefined };
findLastIndex: (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any) => number;
toReversed: () => Array<B>;
toSorted: (compareFn?: ((a: B, b: B) => number) | undefined) => Array<B>;
toSpliced: { (start: number, deleteCount: number, ...items: Array<B>): Array<B>; (start: number, deleteCount?: number): Array<B> };
with: (index: number, value: B) => Array<B>;
}
let i: numberi] = const input: (readonly [A, B])[] &
readonly [
readonly [A, B],
...(readonly [A, B])[]
]
let i: numberi][1]
}
return [const fa: NonEmptyArray<A>const fa: {
0: A;
length: number;
toString: () => string;
toLocaleString: { (): string; (locales: string | string[], options?: Intl.NumberFormatOptions & Intl.DateTimeFormatOptions): string };
pop: () => A | undefined;
push: (...items: Array<A>) => number;
concat: { (...items: Array<ConcatArray<A>>): Array<A>; (...items: Array<A | ConcatArray<A>>): Array<A> };
join: (separator?: string) => string;
reverse: () => Array<A>;
shift: () => A | undefined;
slice: (start?: number, end?: number) => Array<A>;
sort: (compareFn?: ((a: A, b: A) => number) | undefined) => [A, ...A[]];
splice: { (start: number, deleteCount?: number): Array<A>; (start: number, deleteCount: number, ...items: Array<A>): Array<A> };
unshift: (...items: Array<A>) => number;
indexOf: (searchElement: A, fromIndex?: number) => number;
lastIndexOf: (searchElement: A, fromIndex?: number) => number;
every: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): this is S[]; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): boolean };
some: (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any) => boolean;
forEach: (callbackfn: (value: A, index: number, array: Array<A>) => void, thisArg?: any) => void;
map: (callbackfn: (value: A, index: number, array: Array<A>) => U, thisArg?: any) => Array<U>;
filter: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): Array<S>; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): Array<A> };
reduce: { (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A): A; (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A, initialValue: A): A; (callbackfn: (previousVa…;
reduceRight: { (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A): A; (callbackfn: (previousValue: A, currentValue: A, currentIndex: number, array: Array<A>) => A, initialValue: A): A; (callbackfn: (previousVa…;
find: { (predicate: (value: A, index: number, obj: Array<A>) => value is S, thisArg?: any): S | undefined; (predicate: (value: A, index: number, obj: Array<A>) => unknown, thisArg?: any): A | undefined };
findIndex: (predicate: (value: A, index: number, obj: Array<A>) => unknown, thisArg?: any) => number;
fill: (value: A, start?: number, end?: number) => [A, ...A[]];
copyWithin: (target: number, start: number, end?: number) => [A, ...A[]];
entries: () => ArrayIterator<[number, A]>;
keys: () => ArrayIterator<number>;
values: () => ArrayIterator<A>;
includes: (searchElement: A, fromIndex?: number) => boolean;
flatMap: (callback: (this: This, value: A, index: number, array: Array<A>) => U | ReadonlyArray<U>, thisArg?: This | undefined) => Array<U>;
flat: (this: A, depth?: D | undefined) => Array<FlatArray<A, D>>;
at: (index: number) => A | undefined;
findLast: { (predicate: (value: A, index: number, array: Array<A>) => value is S, thisArg?: any): S | undefined; (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any): A | undefined };
findLastIndex: (predicate: (value: A, index: number, array: Array<A>) => unknown, thisArg?: any) => number;
toReversed: () => Array<A>;
toSorted: (compareFn?: ((a: A, b: A) => number) | undefined) => Array<A>;
toSpliced: { (start: number, deleteCount: number, ...items: Array<A>): Array<A>; (start: number, deleteCount?: number): Array<A> };
with: (index: number, value: A) => Array<A>;
}
const fb: NonEmptyArray<B>const fb: {
0: B;
length: number;
toString: () => string;
toLocaleString: { (): string; (locales: string | string[], options?: Intl.NumberFormatOptions & Intl.DateTimeFormatOptions): string };
pop: () => B | undefined;
push: (...items: Array<B>) => number;
concat: { (...items: Array<ConcatArray<B>>): Array<B>; (...items: Array<B | ConcatArray<B>>): Array<B> };
join: (separator?: string) => string;
reverse: () => Array<B>;
shift: () => B | undefined;
slice: (start?: number, end?: number) => Array<B>;
sort: (compareFn?: ((a: B, b: B) => number) | undefined) => [B, ...B[]];
splice: { (start: number, deleteCount?: number): Array<B>; (start: number, deleteCount: number, ...items: Array<B>): Array<B> };
unshift: (...items: Array<B>) => number;
indexOf: (searchElement: B, fromIndex?: number) => number;
lastIndexOf: (searchElement: B, fromIndex?: number) => number;
every: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): this is S[]; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): boolean };
some: (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any) => boolean;
forEach: (callbackfn: (value: B, index: number, array: Array<B>) => void, thisArg?: any) => void;
map: (callbackfn: (value: B, index: number, array: Array<B>) => U, thisArg?: any) => Array<U>;
filter: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): Array<S>; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): Array<B> };
reduce: { (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B): B; (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B, initialValue: B): B; (callbackfn: (previousVa…;
reduceRight: { (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B): B; (callbackfn: (previousValue: B, currentValue: B, currentIndex: number, array: Array<B>) => B, initialValue: B): B; (callbackfn: (previousVa…;
find: { (predicate: (value: B, index: number, obj: Array<B>) => value is S, thisArg?: any): S | undefined; (predicate: (value: B, index: number, obj: Array<B>) => unknown, thisArg?: any): B | undefined };
findIndex: (predicate: (value: B, index: number, obj: Array<B>) => unknown, thisArg?: any) => number;
fill: (value: B, start?: number, end?: number) => [B, ...B[]];
copyWithin: (target: number, start: number, end?: number) => [B, ...B[]];
entries: () => ArrayIterator<[number, B]>;
keys: () => ArrayIterator<number>;
values: () => ArrayIterator<B>;
includes: (searchElement: B, fromIndex?: number) => boolean;
flatMap: (callback: (this: This, value: B, index: number, array: Array<B>) => U | ReadonlyArray<U>, thisArg?: This | undefined) => Array<U>;
flat: (this: A, depth?: D | undefined) => Array<FlatArray<A, D>>;
at: (index: number) => B | undefined;
findLast: { (predicate: (value: B, index: number, array: Array<B>) => value is S, thisArg?: any): S | undefined; (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any): B | undefined };
findLastIndex: (predicate: (value: B, index: number, array: Array<B>) => unknown, thisArg?: any) => number;
toReversed: () => Array<B>;
toSorted: (compareFn?: ((a: B, b: B) => number) | undefined) => Array<B>;
toSpliced: { (start: number, deleteCount: number, ...items: Array<B>): Array<B>; (start: number, deleteCount?: number): Array<B> };
with: (index: number, value: B) => Array<B>;
}
Referenced by 1 symbols