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Function: takeWhile()

Returns an iterable containing the values of iterable in iteration order up until but not including the first value for which fn returns a falsy value.

Example​

console.log(
  pipe(
    [1, 2, 3, 4, 5, 6, 7, 8, `sloth`],
    takeWhile(value => value < 5),
    reduce(toArray()),
  ),
)
//=> [ 1, 2, 3, 4 ]

takeWhile(fn)​

takeWhile<Value>(fn): (iterable) => Iterable<Value, any, any>

Returns an iterable containing the values of iterable in iteration order up until but not including the first value for which fn returns a falsy value.

Type Parameters​

• Value

Parameters​

• fn

Returns​

Function

Parameters​

• iterable: Iterable<Value, any, any>

Returns​

Iterable<Value, any, any>

Example​

console.log(
  pipe(
    [1, 2, 3, 4, 5, 6, 7, 8, `sloth`],
    takeWhile(value => value < 5),
    reduce(toArray()),
  ),
)
//=> [ 1, 2, 3, 4 ]

Defined in​

splices.d.ts:90

takeWhile(fn, iterable)​

takeWhile<Value>(fn, iterable): Iterable<Value, any, any>

Returns an iterable containing the values of iterable in iteration order up until but not including the first value for which fn returns a falsy value.

Type Parameters​

• Value

Parameters​

• fn

• iterable: Iterable<Value, any, any>

Returns​

Iterable<Value, any, any>

Example​

console.log(
  pipe(
    [1, 2, 3, 4, 5, 6, 7, 8, `sloth`],
    takeWhile(value => value < 5),
    reduce(toArray()),
  ),
)
//=> [ 1, 2, 3, 4 ]

Defined in​

splices.d.ts:90