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30-seconds-of-code/snippets/negate.md
2017-12-24 11:05:42 -05:00

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### negate
Negates a predicate function.
Take a predicate function and apply `not` to it with its arguments.
```js
const negate = func => (...args) => !func(...args);
// filter([1, 2, 3, 4, 5, 6], negate(isEven)) -> [1, 3, 5]
// negate(isOdd)(1) -> false
```