Function: filterAsync()
Returns an async iterable that contains the values of asyncIterable in
iteration order excluding the values for which fn returns a value awaitable
to a falsy value.
Like Array.prototype.filter, but for async iterables.
Example
console.log(
await pipe(
asAsync([`sloth party`, `building`, `sloths in trees`, `city`]),
filterAsync(string => string.includes(`sloth`)),
reduceAsync(toArray()),
),
)
//=> [ 'sloth party', 'sloths in trees' ]
filterAsync(fn)
filterAsync<
From,To>(fn): (asyncIterable) =>AsyncIterable<To,any,any>
Returns an async iterable that contains the values of asyncIterable in
iteration order excluding the values for which fn returns a value awaitable
to a falsy value.
Like Array.prototype.filter, but for async iterables.
Type Parameters
• From
• To
Parameters
• fn
Returns
Function
Parameters
• asyncIterable: AsyncIterable<From, any, any>
Returns
AsyncIterable<To, any, any>
Example
console.log(
await pipe(
asAsync([`sloth party`, `building`, `sloths in trees`, `city`]),
filterAsync(string => string.includes(`sloth`)),
reduceAsync(toArray()),
),
)
//=> [ 'sloth party', 'sloths in trees' ]
Defined in
filterAsync(fn, asyncIterable)
filterAsync<
From,To>(fn,asyncIterable):AsyncIterable<To,any,any>
Returns an async iterable that contains the values of asyncIterable in
iteration order excluding the values for which fn returns a value awaitable
to a falsy value.
Like Array.prototype.filter, but for async iterables.
Type Parameters
• From
• To
Parameters
• fn
• asyncIterable: AsyncIterable<From, any, any>
Returns
AsyncIterable<To, any, any>
Example
console.log(
await pipe(
asAsync([`sloth party`, `building`, `sloths in trees`, `city`]),
filterAsync(string => string.includes(`sloth`)),
reduceAsync(toArray()),
),
)
//=> [ 'sloth party', 'sloths in trees' ]
Defined in
filterAsync(fn)
filterAsync<
Value>(fn): (asyncIterable) =>AsyncIterable<Value,any,any>
Returns an async iterable that contains the values of asyncIterable in
iteration order excluding the values for which fn returns a value awaitable
to a falsy value.
Like Array.prototype.filter, but for async iterables.
Type Parameters
• Value
Parameters
• fn
Returns
Function
Parameters
• asyncIterable: AsyncIterable<Value, any, any>
Returns
AsyncIterable<Value, any, any>
Example
console.log(
await pipe(
asAsync([`sloth party`, `building`, `sloths in trees`, `city`]),
filterAsync(string => string.includes(`sloth`)),
reduceAsync(toArray()),
),
)
//=> [ 'sloth party', 'sloths in trees' ]
Defined in
filterAsync(fn, asyncIterable)
filterAsync<
Value>(fn,asyncIterable):AsyncIterable<Value,any,any>
Returns an async iterable that contains the values of asyncIterable in
iteration order excluding the values for which fn returns a value awaitable
to a falsy value.
Like Array.prototype.filter, but for async iterables.
Type Parameters
• Value
Parameters
• fn
• asyncIterable: AsyncIterable<Value, any, any>
Returns
AsyncIterable<Value, any, any>
Example
console.log(
await pipe(
asAsync([`sloth party`, `building`, `sloths in trees`, `city`]),
filterAsync(string => string.includes(`sloth`)),
reduceAsync(toArray()),
),
)
//=> [ 'sloth party', 'sloths in trees' ]