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flatMap()

flatMap<A, B>(f): (ma) => Option<B>

Chains a function that returns an Option over the value.

Type Parameters​

A: A​

The input type.

B: B​

The output type.

Parameters​

f: (a) => Option<B>​

The chaining function.

Returns​

A function that transforms the Option.

Since​

2.0.0