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RA.inRange

See original GitHub issue

As discussed in #324

Signature

Number -> Number -> Number -> Boolean

Possible Implementation

const inRange = curry((low, high, v) =>
  compose(apply(useWith(both, [flip(gte), flip(lte)])), sort(gt), list)(
    low,
    high
  )(v)
);

Codepen

Does it need to do anything else?

Issue Analytics

State:
Created 6 years ago
Comments:15 (6 by maintainers)

Top GitHub Comments

2reactions

wojpawlikcommented, Feb 23, 2018

if start is greater than end the params are swapped to support negative ranges

I don’t think this is essential, after all, you can do inRange(__, max).

Ramda actually treats it as an error.

1reaction

Undistractioncommented, Mar 10, 2018

You could look at it like this:

If I’m trying to check if a value is in the range of n to Number.POSITIVE_INFINITY I’m effectively doing R.flip(R.gt(n)) so I should use that instead. However I’m not sure if that is a good enough argument.

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