initial commit. phase 1 complete

2026-05-05 20:45:19 +02:00
parent d9c68313a0
commit 89e058ffac
20631 changed files with 3224610 additions and 43 deletions
@@ -0,0 +1,24 @@
+const isPlainObject = require('./is_plain_object');
+
+function merge(target, ...sources) {
+  for (const source of sources) {
+    if (!isPlainObject(source)) {
+      continue;
+    }
+    for (const [key, value] of Object.entries(source)) {
+      /* istanbul ignore if */
+      if (key === '__proto__' || key === 'constructor') {
+        continue;
+      }
+      if (isPlainObject(target[key]) && isPlainObject(value)) {
+        target[key] = merge(target[key], value);
+      } else if (typeof value !== 'undefined') {
+        target[key] = value;
+      }
+    }
+  }
+
+  return target;
+}
+
+module.exports = merge;