This solution is generated by ChatGPT, correctness is not guaranteed.
AI solution for JavaScript Coding Question on BFE.dev
1. implement curry()
Here is a possible implementation of the curry()
function in JavaScript:
const curry = (fn) => {
const arity = fn.length;
return function curried(...args) {
if (args.length >= arity) {
return fn.apply(this, args);
} else {
return function (...moreArgs) {
return curried.apply(this, args.concat(moreArgs));
};
}
};
};
Let's break it down:
- The
curry()
function takes a functionfn
as its argument. - It defines a variable
arity
that stores the expected number of arguments offn
. - It returns an anonymous function that will be the curried version of
fn
. - This anonymous function takes any number of arguments via the rest parameter
...args
. - If the number of arguments passed is greater than or equal to
arity
, it means that we have all the parameters we need to callfn
, so we call it withfn.apply(this, args)
and return the result. - If the number of arguments passed is less than
arity
, we return another anonymous function that takes any number of additional arguments via the rest parameter...moreArgs
, and callscurried()
recursively with the concatenation ofargs
andmoreArgs
.
This implementation allows for partial application, meaning that we can call the curried function with some parameters, and get a new function that expects the remaining parameters. This can be useful for creating new functions from existing ones that have some parameters pre-filled.