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ReasonML

Supported extensions: ml, re

ReasonML/BuckleScript

ReasonML compiles OCaml to JavaScript with the help of BuckleScript. You can use ReasonML by installing dependencies and creating bsconfig.json:

$ yarn add bs-platform --dev
// bsconfig.json
// from https://github.com/BuckleScript/bucklescript/blob/master/jscomp/bsb/templates/basic-reason/bsconfig.json

{
  "name": "whatever",
  "sources": {
    "dir": "src",
    "subdirs": true
  },
  "package-specs": {
    "module": "commonjs",
    "in-source": true
  },
  "suffix": ".bs.js",
  "bs-dependencies": [],
  "warnings": {
    "error": "+101"
  },
  "namespace": true,
  "refmt": 3
}
<!-- index.html -->
<!DOCTYPE html>
<html>
  <body>
    <script src="./src/index.re"></script>
  </body>
</html>
/* src/index.re */
print_endline("Hello World");

ReasonReact

ReasonReact is React binding for ReasonML. You can use it with Parcel too:

$ yarn add react react-dom reason-react
// bsconfig.json

{
  "name": "whatever",
+ "reason": {
+   "react-jsx": 2
+ },
  "sources": {
    "dir": "src",
    "subdirs": true
  },
  "package-specs": {
    "module": "commonjs",
    "in-source": true
  },
  "suffix": ".bs.js",
  "bs-dependencies": [
+   "reason-react"
  ],
  "warnings": {
    "error": "+101"
  },
  "namespace": true,
  "refmt": 3
}
<!-- index.html -->
<html>
<body>
+  <div id="app"></div>
  <script src="./src/index.re"></script>
</body>
</html>
/* src/Greeting.re */

let component = ReasonReact.statelessComponent("Greeting");

let make = (~name, _children) => {
  ...component,
  render: _self => <div> (ReasonReact.string("Hello! " ++ name)) </div>,
};
/* src/index.re */

ReactDOMRe.renderToElementWithId(<Greeting name="Parcel" />, "app");

Help us improve the docs

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