Rascal/Expressions/Values/Map/notin

Name Rascal/Expressions/Values/Map/notin

Synopsis Negated membership test on the keys of a map.

Syntax Exp₁ notin Exp₂

Types

`Exp₁`	`Exp₂`	`Exp₁ notin Exp₂`
`T₁` <: `TK`	`map[TK, TV]`	`bool`

Description Yields true if the value of Exp₁ does not occur as key in the map value of Exp₂ and false otherwise. The type of Exp₁ should be compatible with the key type TK of Exp₂.

Examples

rascal>"pineapple" notin ("apple": 1, "pear": 2);
bool: true
rascal>"pear" notin ("apple": 1, "pear": 2);
bool: false

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