Rename js snippets

snippets/js/s/convert-function-from-variadic.md

@@ -0,0 +1,21 @@
+---
+title: Convert function from variadic
+type: snippet
+language: javascript
+tags: [function]
+cover: palm-sun
+dateModified: 2021-06-13T13:50:25+03:00
+---
+
+Takes a variadic function and returns a function that accepts an array of arguments.
+
+- Use a closure and the spread operator (`...`) to map the array of arguments to the inputs of the function.
+
+```js
+const spreadOver = fn => argsArr => fn(...argsArr);
+```
+
+```js
+const arrayMax = spreadOver(Math.max);
+arrayMax([1, 2, 3]); // 3
+```