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curry

TS JS Deno

Curries a function.

Use recursion. If the number of provided arguments (args) is sufficient, call the passed function fn. Otherwise, return a curried function fn 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.

typescript
type Func<T = any> = (...args: T[]) => any;

const curry = (fn: Func, arity = fn.length, ...args: any[]): any =>
  arity <= args.length ? fn(...args) : curry.bind(null, fn, arity, ...args);
typescript
curry(Math.pow)(2)(10); // 1024
curry(Math.min, 3)(10)(50)(2); // 2