2021-03-08 18:17:50 +08:00
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# hashset_has
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Returns `true` if a [util/set/hashset](https://openhome.cc/eGossip/OpenSCAD/lib3x-hashset.html) contains the specified element.
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**Since:** 3.0
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## Parameters
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- `set` : The original set.
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- `elem` : The element to be checked.
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- `eq` : A equality function. If it's ignored, use `==` to compare elements.
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- `hash` : A hash function. If it's ignored, convert each element to a string and hash it.
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## Examples
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2022-06-06 13:11:46 +08:00
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use <util/set/hashset.scad>
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use <util/set/hashset_has.scad>
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2021-03-08 18:17:50 +08:00
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s = hashset([1, 2, 3, 4, 5]);
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assert(hashset_has(s, 3));
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