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fromPredicate()

fromPredicate<A, B>(refinement): (a) => Option<B>

fromPredicate<A>(predicate): (a) => Option<A>

Creates an Option from a predicate.

Type Parameters​

A: A​

The value type.

B: B​

Parameters​

Overload 1:

refinement: (a) => a is B​

The refinement or predicate function.

Overload 2:

predicate: (a) => boolean​

Returns: (a): Option<B>​

A function that creates an Option based on the predicate.

a: A
Returns: Option<B>

Since​

2.0.0