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Function: noneAsync()

Returns a promise that resolves to true if fn returns a falsy value or a promise that resolves to a falsy value for all values of asyncIterable. Otherwise returns a promise that resolves to false.

Example​

console.log(
  await pipe(
    asAsync([`sloth`, `more sloth`, `even more sloth`]),
    noneAsync(string => string.length > 8),
  ),
)
//=> false

noneAsync(fn)​

noneAsync<Value>(fn): (asyncIterable) => Promise<boolean>

Returns a promise that resolves to true if fn returns a falsy value or a promise that resolves to a falsy value for all values of asyncIterable. Otherwise returns a promise that resolves to false.

Type Parameters​

• Value

Parameters​

• fn

Returns​

Function

Parameters​

• asyncIterable: AsyncIterable<Value, any, any>

Returns​

Promise<boolean>

Example​

console.log(
  await pipe(
    asAsync([`sloth`, `more sloth`, `even more sloth`]),
    noneAsync(string => string.length > 8),
  ),
)
//=> false

Defined in​

predicates.d.ts:199

noneAsync(fn, asyncIterable)​

noneAsync<Value>(fn, asyncIterable): Promise<boolean>

Returns a promise that resolves to true if fn returns a falsy value or a promise that resolves to a falsy value for all values of asyncIterable. Otherwise returns a promise that resolves to false.

Type Parameters​

• Value

Parameters​

• fn

• asyncIterable: AsyncIterable<Value, any, any>

Returns​

Promise<boolean>

Example​

console.log(
  await pipe(
    asAsync([`sloth`, `more sloth`, `even more sloth`]),
    noneAsync(string => string.length > 8),
  ),
)
//=> false

Defined in​

predicates.d.ts:199