diff --git a/snippets/curry.md b/snippets/curry.md index a700ac776..4bcfee3c6 100644 --- a/snippets/curry.md +++ b/snippets/curry.md @@ -3,10 +3,18 @@ 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 (variadic function) like Math.min for example, you can optionally pass the number of arguments to the second parameter arity. ```js -const curry = f => - (...args) => - args.length >= f.length ? f(...args) : (...otherArgs) => curry(f)(...args, ...otherArgs); +const curry = (f, arity = f.length, next) => + (next = prevArgs => + nextArg => { + const args = [ ...prevArgs, nextArg ] + return args.length >= arity + ? f(...args) + : next(args); + } + )([]); // curry(Math.pow)(2)(10) -> 1024 +// curry(Math.min, 3)(10)(50)(2) -> 2 ```