21 lines
550 B
Markdown
21 lines
550 B
Markdown
### inRange
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Checks if the given number falls within the given range.
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Use arithmetic comparison to check if the given number is in the specified range.
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If the second parameter, `end`, is not specified, the range is considered to be from `0` to `start`.
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```js
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const inRange = (n, start, end = null) => {
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if (end && start > end) end = [start, start = end][0];
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return (end == null) ? (n >= 0 && n < start) : (n >= start && n < end);
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};
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```
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```js
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inRange(3, 2, 5) // true
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inRange(3, 4) // true
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inRange(2, 3, 5) // false
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inrange(3, 2) // false
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```
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