optimze: decouple the parseValue

src/helpers.ts

@@ -21,3 +21,20 @@ export function getValueInRange(value: number, min: number, max: number) {
     1
   );
 }
+
+/**
+ * compose functions into one function from the left to the right
+ * @param {Array<Function>} func 
+ * @returns {Function}
+ */
+export function compose(...func: Array<Function>): Function {
+  if (func.length === 0) {
+    return (args: any) => args;
+  }
+
+  if (func.length === 1) {
+    return func[0];
+  }
+
+  return func.reduce((a, b) => (...args: Array<any>) => b(a(...args)));
+}