Currying takes your functions to a whole new level of flexibility and power!

Currying transforms a function that takes multiple arguments into a sequence of functions that each take a single argument. This can be useful for a number of reasons:

1. It allows you to create specialized versions of a function by fixing some arguments and only varying others. For example, you might create a curried function that always adds 10 to its argument or one that always multiplies its argument by 3.
2. It can make it easier to work with functions that take multiple arguments by allowing you to supply the arguments one at a time. This can be particularly useful when working with higher-order functions (functions that take other functions as arguments).
3. It can make your code more readable and easier to understand by breaking up a function into a series of smaller, single-argument functions.
4. It can allow you to create functions that are more reusable and composable, as you can use the curried functions as building blocks to create more complex functions.

For example, consider the following function add that takes two arguments and returns their sum:

We can use currying to transform add into a series of functions that each take a single argument:

Now, instead of calling add with two arguments, we can call it with a single argument x, which returns a new function that takes an argument y. This new function can then be called to compute the sum of x and y.

Here is an example of how we can use the curried add function:

Lodash popular utility library includes a curry function that allows you to curry any function. i.e

Alternatively, you can use the curryRight function to curry the function from the right-hand side instead of the left. This can be useful if you want to fix the rightmost argument instead of the leftmost argument.

Currying can be useful for creating specialized versions of functions, or for making it easier to work with functions that take multiple arguments by allowing you to fix some arguments and only vary others.