flat - npm Package Compare versions

Comparing version 1.4.0 to 1.5.0

index.js

@@ -42,2 +42,3 @@ var flat = module.exports = flatten
   var delimiter = opts.delimiter || '.'
+  var overwrite = opts.overwrite || false
   var result = {}
@@ -68,3 +69,9 @@
     while (key2 !== undefined) {
-      if (recipient[key1] === undefined) {
+      var type = Object.prototype.toString.call(recipient[key1])
+      var isobject = (
+        type === "[object Object]" ||
+        type === "[object Array]"
+      )
+
+      if ((overwrite && !isobject) || (!overwrite && recipient[key1] === undefined)) {
         recipient[key1] = (
@@ -71,0 +78,0 @@ typeof key2 === 'number' &&

package.json

 {
   "name": "flat",
-  "version": "1.4.0",
+  "version": "1.5.0",
   "main": "index.js",
@@ -5,0 +5,0 @@ "scripts": {

README.md

@@ -118,1 +118,21 @@ # flat [![Build Status](https://secure.travis-ci.org/hughsk/flat.png?branch=master)](http://travis-ci.org/hughsk/flat)
 ```
+
+### overwrite
+
+When enabled, existing keys in the unflattened object may be overwritten if they cannot hold a newly encountered nested value:
+
+```javascript
+unflatten({
+    'TRAVIS': 'true',
+    'TRAVIS_DIR': '/home/travis/build/kvz/environmental'
+}, { overwrite: true })
+
+// TRAVIS: {
+//     DIR: '/home/travis/build/kvz/environmental'
+// }
+```
+
+Without `overwrite` set to `true`, the `TRAVIS` key would already have been set to a string, thus could not accept the nested `DIR` element.
+
+This only makes sense on ordered arrays, and since we're overwriting data, should be used with care.
+

test/test.js

@@ -178,2 +178,18 @@ var assert = require('assert')
 
+  test('Overwrite', function() {
+    assert.deepEqual({
+      travis: {
+        build: {
+          dir: "/home/travis/build/kvz/environmental"
+        }
+      }
+    }, unflatten({
+      travis: "true",
+      travis_build_dir: "/home/travis/build/kvz/environmental"
+    }, {
+      delimiter: '_',
+      overwrite: true,
+    }))
+  })
+
   test('Messy', function() {
@@ -180,0 +196,0 @@ assert.deepEqual({

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Improved metrics

Total package byte prevSize

14644

increased by8.76%

Lines of code

415

increased by5.33%

Number of lines in readme file

138

increased by16.95%

No dependency changes