webpack-merge - npm Package Compare versions

Comparing version 0.8.3 to 0.8.4

CHANGELOG.md

@@ -0,1 +1,6 @@
+0.8.4 / 2016-03-17
+==================
+
+  * Bug fix: *webpack-merge* should not mutate inputs. #12
+
 0.8.3 / 2016-03-02
@@ -2,0 +7,0 @@ ==================

lib/index.js

@@ -58,3 +58,3 @@ 'use strict';
   if (isPlainObject(a) && isPlainObject(b)) {
-    return merge(a, b, joinArrays.bind(null, customizer));
+    return merge({}, a, b, joinArrays.bind(null, customizer));
   }
@@ -61,0 +61,0 @@

package.json

@@ -5,3 +5,3 @@ {
   "author": "Juho Vepsalainen <[e-mail]>",
-  "version": "0.8.3",
+  "version": "0.8.4",
   "scripts": {
@@ -8,0 +8,0 @@ "build": "babel src -d lib",

src/index.js

@@ -52,3 +52,3 @@ const isArray = Array.isArray;
   if (isPlainObject(a) && isPlainObject(b)) {
-    return merge(a, b, joinArrays.bind(null, customizer));
+    return merge({}, a, b, joinArrays.bind(null, customizer));
   }
@@ -55,0 +55,0 @@

test.js

@@ -531,2 +531,19 @@ /* eslint-env mocha */
 
+  it('should not mutate inputs', function () {
+    const a = {
+      output: {
+        filename: 'bundle.js'
+      }
+    };
+    const b = {
+      output: {
+        path: 'path/b'
+      }
+    };
+
+    const aClone = JSON.parse(JSON.stringify(a));
+    merge({}, a, b);
+
+    assert.deepEqual(a, aClone);
+  });
 }

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increased by1.65%

Lines of code

626

increased by2.45%

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