ui

app/code/node_modules/collect.js/dist/methods/flatten.js

@@ -0,0 +1,57 @@
+'use strict';
+
+var _require = require('../helpers/is'),
+    isArray = _require.isArray,
+    isObject = _require.isObject;
+
+module.exports = function flatten(depth) {
+  var flattenDepth = depth || Infinity;
+
+  var fullyFlattened = false;
+  var collection = [];
+
+  var flat = function flat(items) {
+    collection = [];
+
+    if (isArray(items)) {
+      items.forEach(function (item) {
+        if (isArray(item)) {
+          collection = collection.concat(item);
+        } else if (isObject(item)) {
+          Object.keys(item).forEach(function (property) {
+            collection = collection.concat(item[property]);
+          });
+        } else {
+          collection.push(item);
+        }
+      });
+    } else {
+      Object.keys(items).forEach(function (property) {
+        if (isArray(items[property])) {
+          collection = collection.concat(items[property]);
+        } else if (isObject(items[property])) {
+          Object.keys(items[property]).forEach(function (prop) {
+            collection = collection.concat(items[property][prop]);
+          });
+        } else {
+          collection.push(items[property]);
+        }
+      });
+    }
+
+    fullyFlattened = collection.filter(function (item) {
+      return isObject(item);
+    });
+    fullyFlattened = fullyFlattened.length === 0;
+
+    flattenDepth -= 1;
+  };
+
+  flat(this.items);
+
+  while (!fullyFlattened && flattenDepth > 0) {
+    flat(collection);
+  }
+
+  return new this.constructor(collection);
+};