reorganize all frontend items

frontend/utils/recipe.js

@@ -0,0 +1,49 @@
+export const recipe = {
+  /**
+   * Sorts a list of recipes in place
+   * @param {Array<Object>} list of recipes
+   * @param {Boolean} inverse - Z or A First
+   */
+  sortAToZ(list) {
+    list.sort((a, b) => {
+      var textA = a.name.toUpperCase();
+      var textB = b.name.toUpperCase();
+      return textA < textB ? -1 : textA > textB ? 1 : 0;
+    });
+  },
+  sortByCreated(list) {
+    list.sort((a, b) => (a.dateAdded > b.dateAdded ? -1 : 1));
+  },
+  sortByUpdated(list) {
+    list.sort((a, b) => (a.dateUpdated > b.dateUpdated ? -1 : 1));
+  },
+  sortByRating(list) {
+    list.sort((a, b) => (a.rating > b.rating ? -1 : 1));
+  },
+  /**
+   *
+   * @param {Array<Object>} list
+   * @returns String / Recipe Slug
+   */
+  randomRecipe(list) {
+    return list[Math.floor(Math.random() * list.length)];
+  },
+  shuffle(list) {
+    let last = list.length;
+    let n;
+    while (last > 0) {
+      n = rand(last);
+      swap(list, n, --last);
+    }
+  },
+};
+
+const rand = n =>
+  Math.floor(Math.random() * n)
+
+function swap(t, i, j) {
+  let q = t[i];
+  t[i] = t[j];
+  t[j] = q;
+  return t;
+}