Add deepClone.md

snippets/deepClone.md

@@ -0,0 +1,25 @@
+### deepClone
+
+Creates a deep clone of an object.
+
+Use recursion.
+Use `Object.assign()` and an empty object (`{}`) to create a shallow clone of the original.
+Use `Object.keys()` and `Array.forEach()` to determine which key-value pairs need to be deep cloned.
+
+```js
+const deepClone = obj => {
+  let clone = Object.assign({}, obj);
+  Object.keys(clone).forEach(
+    key =>
+      (clone[key] = typeof obj[key] === 'object'
+        ? deepClone(obj[key])
+        : obj[key])
+  );
+  return clone;
+};
+```
+
+```js
+const a = { foo: 'bar', obj: { a: 1, b: 2 } };
+const b = deepClone(a); // a !== b, a.obj !== b.obj
+```

tag_database

@@ -27,6 +27,7 @@ createEventHub:browser,event,advanced
 currentURL:browser,url
 curry:function,recursion
 decapitalize:string,array
+deepClone:object,recursion
 deepFlatten:array,recursion
 defaults:object
 defer:function
@@ -125,7 +126,7 @@ mapObject:array,object
 mapValues:object,function
 mask:string,utility,regexp
 matches:object,type
-matchesWith:object,type,function 
+matchesWith:object,type,function
 maxBy:math,array,function
 maxN:array,math
 median:math,array