1 files changed, 31 insertions, 0 deletions

diff --git a/dist/js/lib/mergedeep.js b/dist/js/lib/mergedeep.js
new file mode 100644
index 0000000..a56aa1d
--- /dev/null
+++ b/dist/js/lib/mergedeep.js
@@ -0,0 +1,31 @@
+// https://stackoverflow.com/questions/27936772/how-to-deep-merge-instead-of-shallow-merge
+/**
+ * Simple object check.
+ * @param item
+ * @returns {boolean}
+ */
+function isObject(item) {
+    return (item && typeof item === 'object' && !Array.isArray(item));
+}
+
+/**
+ * Deep merge two objects.
+ * @param target
+ * @param ...sources
+ */
+function mergeDeep(target, ...sources) {
+    if (!sources.length) return target;
+    const source = sources.shift();
+
+    if (isObject(target) && isObject(source)) {
+        for (const key in source) {
+            if (isObject(source[key])) {
+                if (!target[key]) Object.assign(target, { [key]: {} });
+                mergeDeep(target[key], source[key]);
+            } else {
+                Object.assign(target, { [key]: source[key] });
+            }
+        }
+    }
+  return mergeDeep(target, ...sources);
+}