Function fromNullableOption

Constructs a new Option from a nullable type. If the value is null or undefined, returns None, otherwise returns the value wrapped in a Some.

Example

import { none, some, fromNullable } from 'fp-ts/Option'

assert.deepStrictEqual(fromNullable(undefined), none)
assert.deepStrictEqual(fromNullable(null), none)
assert.deepStrictEqual(fromNullable(1), some(1))
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Since

2.0.0