Update and rename hexadecimal-to-RGB.md to hexcode-to-RGB.md

snippets/hexcode-to-RGB.md

@@ -0,0 +1,10 @@
+### Hexcode to RGB
+
+Converts hexadecimal colorcodes to RGB colorcodes by matching the hexidecimal (two-digit) red, green and blue values and 
+mapping their decimal equivalents to an array [r, g, b]. Returns a string `rgb(r,g,b)`.
+
+```js
+const hexToRgb = hex => `rgb(${hex.slice(1).match(/.{2}/g).map(x => parseInt(x, 16)).join()})`
+// hexToRgb('#27ae60') -> 'rgb(39,174,96)'
+// hexToRgb('#aaa') -> '[170, 170, 170]'
+```