elem()

elem<A>(E): (a) => <Err>(ma) => boolean

Tests if a value is equal to the Right value using an Eq instance.

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Type Parameters

A: A

The success type.

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Parameters

E: #### equals: (a, b) => boolean

The Eq instance.

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Returns

A curried function that tests equality.

Type Parameters

Err: Err

ma: Either<Err, A>
Returns: boolean

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Since

2.0.0