forked from orion/obsidian
29 lines
1.5 KiB
Markdown
29 lines
1.5 KiB
Markdown
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[[Infix Operators]] used for [[Boolean|boolean]] algebra.
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> [!info]
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> `&&` and `||` become short-circuiting when used on functions, e.g. `Unit -> Boolean`:
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>
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> ```haskell
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> a :: Unit -> Boolean
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> a _ = false
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>
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> b :: Unit -> Boolean
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> b _ = unsafeCrashWith "uh-oh!"
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>
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> c :: Unit -> Boolean
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> c = a && b
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>
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> d :: Unit -> Boolean
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> d = c unit
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> ```
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|Operator|Description|Associativity|Precedence|Defined As|
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|--|--|--|--|--|
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|<code>||</code>|boolean OR|right|2|[`Data.HeytingAlgrebra.disj`](https://pursuit.purescript.org/packages/purescript-prelude/docs/Data.HeytingAlgebra#v:(||))
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|`&&`|boolean AND|right|3|[`Data.HeytingAlgrebra.conj`](https://pursuit.purescript.org/packages/purescript-prelude/docs/Data.HeytingAlgebra#v:(&&))|
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|`==`|equals|not|4|[`Data.Eq.eq`](https://pursuit.purescript.org/packages/purescript-prelude/docs/Data.Eq#v:(==))|
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|`/=`|not equals|||[`Data.Eq.notEq`](https://pursuit.purescript.org/packages/purescript-prelude/docs/Data.Eq#v:(/=))|
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|`>`|greater than|||[`Data.Ord.greaterThan`](https://pursuit.purescript.org/packages/purescript-prelude/docs/Data.Ord#v:(>))|
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|`<`|less than|||[`Data.Ord.lessThan`](https://pursuit.purescript.org/packages/purescript-prelude/docs/Data.Ord#v:(<))|
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|`>=`|greater than or equal|||[`Data.Ord.greaterThanOrEq`](https://pursuit.purescript.org/packages/purescript-prelude/docs/Data.Ord#v:(>=))|
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|`<=`|less than or equal|||[`Data.Ord.lessThanOrEq`](https://pursuit.purescript.org/packages/purescript-prelude/docs/Data.Ord#v:(<=))|
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