+ string util: stringToBoolean

src/utils/string.js

@@ -1,3 +1,5 @@
+import {map} from './common';
+
 /**
  * Return a function that accept one String parameter and returns result of replacing.
  *
@@ -6,3 +8,15 @@
  */
 export const stringReplace = (searchValue, replaceValue) =>
     str => str.replace(searchValue, replaceValue);
+
+let toTrue = map(true, i => i === 'true');
+let toFalse = map(false, i => i === 'false');
+const boolProcessors = [toTrue, toFalse];
+
+export function stringToBoolean(string){
+    return boolProcessors
+        .reduce(
+            (value, fn) => fn(value),
+            string
+        );
+}