Function partition

partition<V>(
input: V[],
predicate: (value: V, index: number) => Promise<boolean>,
): Promise<[V[], V[]]>
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- V
Parameters
- input: V[]
- predicate: (value: V, index: number) => Promise<boolean>
Returns Promise<[V[], V[]]>
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1222
partition<V>(
input: V[],
predicate: (value: V, index: number) => boolean,
): [V[], V[]]
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- V
Parameters
- input: V[]
- predicate: (value: V, index: number) => boolean
Returns [V[], V[]]
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1226
partition<K, V>(
input: Map<K, V>,
predicate: (value: [K, V], index: number) => Promise<boolean>,
): Promise<[Map<K, V>, Map<K, V>]>
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- K
- V
Parameters
- input: Map<K, V>
- predicate: (value: [K, V], index: number) => Promise<boolean>
Returns Promise<[Map<K, V>, Map<K, V>]>
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1230
partition<K, V>(
input: Map<K, V>,
predicate: (value: [K, V], index: number) => boolean,
): [Map<K, V>, Map<K, V>]
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- K
- V
Parameters
- input: Map<K, V>
- predicate: (value: [K, V], index: number) => boolean
Returns [Map<K, V>, Map<K, V>]
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1234
partition<T>(
input: Set<T>,
predicate: (value: T, index: number) => Promise<boolean>,
): Promise<[Set<T>, Set<T>]>
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- T
Parameters
- input: Set<T>
- predicate: (value: T, index: number) => Promise<boolean>
Returns Promise<[Set<T>, Set<T>]>
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1238
partition<T>(
input: Set<T>,
predicate: (value: T, index: number) => boolean,
): [Set<T>, Set<T>]
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- T
Parameters
- input: Set<T>
- predicate: (value: T, index: number) => boolean
Returns [Set<T>, Set<T>]
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1242
partition<T>(
input: AsyncIterable<T>,
predicate: (value: T, index: number) => boolean | Promise<boolean>,
): Promise<[T[], T[]]>
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- T
Parameters
- input: AsyncIterable<T>
- predicate: (value: T, index: number) => boolean | Promise<boolean>
Returns Promise<[T[], T[]]>
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1246
partition<T>(
input: Iterable<T>,
predicate: (value: T, index: number) => Promise<boolean>,
): Promise<[T[], T[]]>
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- T
Parameters
- input: Iterable<T>
- predicate: (value: T, index: number) => Promise<boolean>
Returns Promise<[T[], T[]]>
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1250
partition<T>(
input: Iterable<T>,
predicate: (value: T, index: number) => boolean,
): [T[], T[]]
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- T
Parameters
- input: Iterable<T>
- predicate: (value: T, index: number) => boolean
Returns [T[], T[]]
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1254
partition<K extends PropertyKey, V>(
input: Record<K, V>,
predicate: (value: [K, V], index: number) => Promise<boolean>,
): Promise<[Record<K, V>, Record<K, V>]>
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- K extends PropertyKey
- V
Parameters
- input: Record<K, V>
- predicate: (value: [K, V], index: number) => Promise<boolean>
Returns Promise<[Record<K, V>, Record<K, V>]>
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1258
partition<K extends PropertyKey, V>(
input: Record<K, V>,
predicate: (value: [K, V], index: number) => boolean,
): [Record<K, V>, Record<K, V>]
Splits an iterable structure into two — [matching, rest] — by a predicate.

Both halves preserve the input container type. With an async predicate the result is wrapped in a Promise.
Type Parameters
- K extends PropertyKey
- V
Parameters
- input: Record<K, V>
- predicate: (value: [K, V], index: number) => boolean
Returns [Record<K, V>, Record<K, V>]
Example
```
partition([1, 2, 3, 4], v => v % 2 === 0)
// [[2, 4], [1, 3]]

partition({ a: 1, b: 2 }, ([, v]) => v > 1)
// [{ b: 2 }, { a: 1 }]
```
- Defined in src/iterable.ts:1262

Function partition

Type Parameters

Parameters

Returns Promise<[V[], V[]]>

Example

Type Parameters

Parameters

Returns [V[], V[]]

Example

Type Parameters

Parameters

Returns Promise<[Map<K, V>, Map<K, V>]>

Example

Type Parameters

Parameters

Returns [Map<K, V>, Map<K, V>]

Example

Type Parameters

Parameters

Returns Promise<[Set<T>, Set<T>]>

Example

Type Parameters

Parameters

Returns [Set<T>, Set<T>]

Example

Type Parameters

Parameters

Returns Promise<[T[], T[]]>

Example

Type Parameters

Parameters

Returns Promise<[T[], T[]]>

Example

Type Parameters

Parameters

Returns [T[], T[]]

Example

Type Parameters

Parameters

Returns Promise<[Record<K, V>, Record<K, V>]>

Example

Type Parameters

Parameters

Returns [Record<K, V>, Record<K, V>]

Example

Settings