node v14.. add dist

75lb · Jun 9, 2021 · 0adfa45 · 0adfa45
1 parent ec80180
commit 0adfa45
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diff --git a/dist/index.mjs b/dist/index.mjs
diff --git a/index.js b/index.js
diff --git a/index.mjs b/index.mjs
@@ -0,0 +1,23 @@
+import assignWith from 'lodash.assignwith'
+import { isPlainObject, isDefined } from 'typical'
+
+function customiser (previousValue, newValue, key, object, source) {
+  /* deep merge plain objects */
+  if (isPlainObject(previousValue) && isPlainObject(newValue)) {
+    return assignWith(previousValue, newValue, customiser)
+    /* overwrite arrays if the new array has items */
+  } else if (Array.isArray(previousValue) && Array.isArray(newValue) && newValue.length) {
+    return newValue
+    /* ignore incoming arrays if empty */
+  } else if (Array.isArray(newValue) && !newValue.length) {
+    return previousValue
+  } else if (!isDefined(previousValue) && Array.isArray(newValue)) {
+    return newValue
+  }
+}
+
+function deepMerge (...args) {
+  return assignWith(...args, customiser)
+}
+
+export default deepMerge