Rename js snippets

snippets/js/s/map-number-to-range.md

@@ -0,0 +1,21 @@
+---
+title: Map number to range
+type: snippet
+language: javascript
+tags: [math]
+cover: carrots
+dateModified: 2020-10-21T21:54:53+03:00
+---
+
+Maps a number from one range to another range.
+
+- Return `num` mapped between `outMin`-`outMax` from `inMin`-`inMax`.
+
+```js
+const mapNumRange = (num, inMin, inMax, outMin, outMax) =>
+  ((num - inMin) * (outMax - outMin)) / (inMax - inMin) + outMin;
+```
+
+```js
+mapNumRange(5, 0, 10, 0, 100); // 50
+```