Merge pull request #278 from arjunmahishi/inRange

Snippet to implement inRange
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Angelos Chalaris
2017-12-21 11:06:15 +02:00
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snippets/inRange.md Normal file
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### inRange
Checks if the given number falls in the given range.
Use arithmetic comparison to check if the given number is in the specified range.
If the second parameter, `end`, is not specified, the reange is considered to be from `0` to `start`.
```js
const inRange = (n, start, end=null) => {
if(end && start > end) end = [start, start=end][0];
return (end == null) ? (n>=0 && n<start) : (n>=start && n<end);
}
// inRange(3, 2, 5) -> true
// inRange(3, 4) -> true
// inRange(2, 3, 5) -> false
// inrange(3, 2) -> false
```