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Implement `map2` ... `map5` functions.

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@Gozala Gozala released this 29 Jan 00:45
· 1 commit to master since this release
0.0.3
ce68a25

In this release library API is extended with a following functions:

map2

Apply a function to two results, if both results are Ok. If not, the first argument which is an Error will propagate through.

Result.map2
( (x, y) => x + y
, Result.ok(1)
, Result.ok(2)
) // => Ok(3)

Result.map2
( (x, y) => x + y
, Result.ok(1)
, Result.error('NaN')
) // => Error('NaN')

Result.map2
( (x, y) => x + y
, Result.error('Boom')
, Result.ok(2)
) // => Error('Boom')

Result.map2
( (x, y) => x + y
, Result.error('Boom')
, Result.error('NaN')
) // => Error('Boom')

map3

Apply a function to three results, if all results are Ok. If not, the first result that is Error will propagate through.

Result.map3
( (a, b, c) => a + b + c
, Result.ok(1)
, Result.ok(2)
, Result.ok(10)
) // => Ok(13)

Result.map3
( (a, b, c) => a + b + c
, Result.ok(1)
, Result.error('NaN')
, Result.ok(10)
) // => Error('NaN')

Result.map3
( (a, b, c) => a + b + c
, Result.error('Boom')
, Result.ok(2)
, Result.ok(10)
) // => Error('Boom')

Result.map3
( (a, b, c) => a + b + c
, Result.error('Boom')
, Result.error('NaN')
, Result.ok(10)
) // => Error('Boom')


Result.map3
( (a, b, c) => a + b + c
, Result.ok(2)
, Result.ok(10)
, Result.error('Oops')
) // => Error('Oops')

map4

Apply a function to four results, if all results are Ok. If not, the first result that is Error will propagate through.

Result.map4
( (a, b, c, d) => a + b + c + d
, Result.ok(1)
, Result.ok(2)
, Result.ok(10)
, Result.ok(7)
) // => Ok(20)

Result.map4
( (a, b, c, d) => a + b + c + d
, Result.ok(1)
, Result.ok(2)
, Result.error('Oops')
, Result.ok(7)
) // => Error('Oops')

Result.map4
( (a, b, c, d) => a + b + c + d
, Result.ok(1)
, Result.ok(2)
, Result.ok(7)
, Result.error('Oops')
) // => Error('Oops')


Result.map4
( (a, b, c, d) => a + b + c + d
, Result.ok(1)
, Result.error('Oops')
, Result.ok(2)
, Result.error('Boom')
) // => Error('Oops')

map5

Apply a function to five results, if all results are Ok. If not, the first result that is Error will propagate through.

Result.map5
( (a, b, c, d, e) => a + b + c + d + e
, Result.ok(1)
, Result.ok(2)
, Result.ok(10)
, Result.ok(7)
, Result.ok(3)
) // => Ok(23)

Result.map5
( (a, b, c, d, e) => a + b + c + d + e
, Result.ok(1)
, Result.ok(2)
, Result.error('Oops')
, Result.ok(7)
, Result.ok(3)
) // => Error('Oops')

Result.map5
( (a, b, c, d, e) => a + b + c + d + e
, Result.ok(1)
, Result.ok(2)
, Result.ok(7)
, Result.ok(3)
, Result.error('Oops')
) // => Error('Oops')


Result.map5
( (a, b, c, d, e) => a + b + c + d + e
, Result.ok(1)
, Result.error('Oops')
, Result.ok(2)
, Result.error('Boom')
, Result.ok(7)
) // => Error('Oops')
Assets 2
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