add toHSLObject (#1617)

* add toHSLObject

* correct hsl destructure naming

* add % sign to saturation and lightness

snippets/toHSLObject.md

@@ -0,0 +1,21 @@
+---
+title: toHSLObject
+tags: string,browser,regexp,intermediate
+---
+
+Converts an `hsl()` color string to an object with the values of each color.
+
+- Use `String.prototype.match()` to get an array of 3 string with the numeric values.
+- Use `Array.prototype.map()` in combination with `Number` to convert them into an array of numeric values.
+- Use array destructuring to store the values into named variables and create an appropriate object from them.
+
+```js
+const toHSLObject = hslStr => {
+  const [hue, saturation, lightness] = hslStr.match(/\d+/g).map(Number);
+  return { hue, saturation, lightness };
+};
+```
+
+```js
+toHSLObject("hsl(50,10%,10%)"); // { hue: 50, saturation: 10, lightness: 10 }
+```