Merge pull request #247 from kevanstannard/syntax-lookup-function-and-uncurried-function

Syntax lookup: function / uncurried function

Author: ryyppy

misc_docs/syntax/function_uncurried.mdx

@@ -0,0 +1,31 @@
+---
+id: "function"
+keywords: ["function"]
+name: "() => {}"
+summary: "This is a `function`."
+category: "languageconstructs"
+---
+
+Functions are declared with arguments in parentheses, an arrow, and a return expression.
+
+### Example
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let greet = (name: string) => {
+  "Hello " ++ name
+}
+```
+
+```js
+function greet(name) {
+  return "Hello " + name;
+}
+```
+
+</CodeTab>
+
+### References
+
+* [Function](/docs/manual/latest/function)

misc_docs/syntax/language_function.mdx

@@ -0,0 +1,41 @@
+---
+id: "uncurried-function"
+keywords: ["function", "uncurried"]
+name: "(.) => {}"
+summary: "This is an `uncurried function`."
+category: "languageconstructs"
+---
+
+ReScript functions are curried by default, however in certain cases you may need an uncurried function. In these cases we add a `.` in the argument list.
+
+When calling uncurried functions, we must also include a `.` in the argument list.
+
+### Example
+
+<CodeTab labels={["ReScript", "JS Output"]}>
+
+```res
+let add = (. x, y) => {
+  x + y
+}
+
+let withCallback = (cb: (. int) => unit) => {
+  cb(. 1)
+}
+```
+
+```js
+function add(x, y) {
+  return (x + y) | 0;
+}
+
+function withCallback(cb) {
+  return cb(1);
+}
+```
+
+</CodeTab>
+
+### References
+
+- [Uncurried Function](/docs/manual/latest/function#uncurried-function)