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30-seconds-of-code/snippets/curry.md
Elder Henrique Souza 8589f0c80e minor refactor to curry
2017-12-14 13:11:45 -02:00

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### Curry
Use recursion.
If the number of provided arguments (`args`) is sufficient, call the passed function `f`.
Otherwise return a curried function `f` that expects the rest of the arguments.
If you want to curry a function that accepts a variable number of arguments (a variadic function, e.g. `Math.min()`), you can optionally pass the number of arguments to the second parameter `arity`.
```js
const curry = (fn, arity = fn.length, ...args) =>
arity <= args.length
? fn(...args)
: curry.bind(null, fn, arity, ...args)
// curry(Math.pow)(2)(10) -> 1024
// curry(Math.min, 3)(10)(50)(2) -> 2
```