Function tap

tap<T extends IteratorOrIterable<unknown>>(
arg: T,
func: (value: IterSource<T>) => any,
): IterableIterator<IterSource<T>>
Tap into the input iterator by supplying func which is passed each value of this iterator. The return value of func is unused and this method is purely designed for a designated place to perform side effects.
Type Parameters
- T extends IteratorOrIterable<unknown>
Parameters
- arg: T
- func: (value: IterSource<T>) => any
Returns IterableIterator<IterSource<T>>
Example
```
toArray(tap(map([1, 2, 3], n => n * 2), console.log));
 // logs 2, 4, 6 to the console
```
- Defined in src/tap.ts:12
tap<T extends IteratorOrIterable<unknown>>(
func: (value: IterSource<T>) => any,
): (arg: T) => IterableIterator<IterSource<T>>
Tap into the input iterator by supplying func which is passed each value of this iterator. The return value of func is unused and this method is purely designed for a designated place to perform side effects.
Type Parameters
- T extends IteratorOrIterable<unknown>
Parameters
- func: (value: IterSource<T>) => any
Returns (arg: T) => IterableIterator<IterSource<T>>
Example
```
toArray(tap(map([1, 2, 3], n => n * 2), console.log));
 // logs 2, 4, 6 to the console
```
- Defined in src/tap.ts:16