Working on the saving of data

src/utilities.js

@@ -157,3 +157,66 @@ export function addHHMMSSTimeStrings(
   const secondSeconds = getTimeAsSeconds(second, timeRegex);
   return getSecondsAsHHMMSS(firstSeconds + secondSeconds);
 }
+
+/**
+ * Flatten a JSON object down to string paths for each values
+ * @param {object} data
+ * @return {object}
+ */
+export function flatten(data) {
+  const result = {};
+
+  /**
+   * Recurse through the object
+   * @param {*} cur
+   * @param {*} prop
+   */
+  function recurse(cur, prop) {
+    if (Object(cur) !== cur) {
+      result[prop] = cur;
+    } else if (Array.isArray(cur)) {
+      for (let i = 0, l = cur.length; i < l; i++) {
+        recurse(cur[i], prop + '[' + i + ']');
+        if (l === 0) result[prop] = [];
+      }
+    } else {
+      let isEmpty = true;
+      for (const p in cur) {
+        if ({}.hasOwnProperty.call(cur, p)) {
+          isEmpty = false;
+          recurse(cur[p], prop ? prop + '.' + p : p);
+        }
+      }
+      if (isEmpty && prop) result[prop] = {};
+    }
+  }
+
+  recurse(data, '');
+  return result;
+}
+
+/**
+ * Un-flatten a flat JSON object
+ * @param {object} data
+ * @return {object}
+ */
+export function unflatten(data) {
+  'use strict';
+  if (Object(data) !== data || Array.isArray(data)) return data;
+  const regex = /\.?([^.[\]]+)|\[(\d+)]/g;
+  const result = {};
+  for (const p in data) {
+    if ({}.hasOwnProperty.call(data, p)) {
+      let cur = result;
+      let prop = '';
+      let m = regex.exec(p);
+      while (m) {
+        cur = cur[prop] || (cur[prop] = (m[2] ? [] : {}));
+        prop = m[2] || m[1];
+        m = regex.exec(p);
+      }
+      cur[prop] = data[p];
+    }
+  }
+  return result[''] || result;
+}