Rackt ·

An ultra small (~70 loc) React wrapper written in RacketScript

Rackt allows you to develop full-featured React web apps in RacketScript. You can use all React compatible libraries with it as well.

Key featrures

• 🪶 Ultra small. Rackt is a pretty thin wrapper for React. Just consider you use React but with RacketScript.
• ⚡ Super lightweight. Compiled code takes only 6 Kb ungzipped.
• 🔌 Easy to use API. All transformations between JavaScript and RacketScript primitives happen under the hood. You can focus on writing code.
• ✨ Modern. It has first-class support of functional components and hooks.

Here you can see an example of a pretty simple Rackt-component:

(define (counter props ..)
    (define-values (counter set-counter) (use-state 0))

    (<el "div"
        (<el "button"
            #:props ($/obj [ className "button" ]
                   [ type "button" ]
                   [onClick (lambda (_) (set-counter (- counter 1)))])
            "- 1")

        (<el "span" #:props ($/obj [ className "counter" ]) counter)

        (<el "button"
            #:props ($/obj [ className "button" ]
                   [ type "button" ]
                   [onClick (lambda (_) (set-counter (+ counter 1)))])
            "+ 1")))

(render (<el counter) "root")

<el is just a simple wrapper for React.createElement. It has the same API but with a little bit different syntax:

(define create-element 
    (lambda (component #:props [props null] . children)

    ...

As you can see it takes component, optional props and any amount of children.

For other functions, you can see their implementation right here and use React documentation for all of them.

You can find working examples on the Rackt's main page.

Installation

It's unpublished in the registry for now, so to install the library you should clone the repo and install it manually:

git clone git@github.com:rackt-org/rackt.git
cd ./rackt
raco pkg install