underscore.deep - npm Package Compare versions

Comparing version 0.4.0 to 0.5.0

package.json

 {
   "name": "underscore.deep",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "description": "Underscore mixins for deeply nested objects",
@@ -22,3 +22,6 @@ "main": "underscore.deep.js",
     "mocha": "~1.13.0"
+  },
+  "publishConfig": {
+    "registry": "https://registry.npmjs.org"
   }
 }

README.coffee.md

@@ -184,14 +184,14 @@ # underscore.deep
 
+      foods =
+        fruit:
+          apple: true
+          orange: true
+          carrot: true
+        vegetables:
+          banana: true
+
       describe '_.deepOmit', ->
 
-        obj =
-          fruit:
-            apple: true
-            orange: true
-            carrot: true
-          vegetables:
-            banana: true
-
         it 'returns an object without the given keys', ->
-          assert.deepEqual _.deepOmit(obj, ['fruit.carrot', 'vegetables']),
+          assert.deepEqual _.deepOmit(foods, ['fruit.carrot', 'vegetables']),
             fruit:
@@ -201,2 +201,15 @@ apple: true
 
+### _.deepPick(obj, keys)
+
+Takes an object and a list of dot-notation keys and returns a new object with only those keys. If you pick a key that has a subobject below it, the entire subobject will be included, regardless of whether its subkeys are also picked.
+
+      describe '_.deepPick', ->
+
+        it 'returns an object with only the given keys', ->
+          assert.deepEqual _.deepPick(foods, ['fruit.carrot', 'vegetables']),
+            fruit:
+              carrot: true
+            vegetables:
+              banana: true
+
 ### _.deepExtend(destination, source, mutate = false)
@@ -203,0 +216,0 @@

underscore.deep.js

 // Generated by CoffeeScript 1.6.3
-var deepClone, deepDelete, deepExtend, deepKeys, deepMapValues, isPlainObject, mapKeys, mapValues, _;
+var deepClone, deepDelete, deepExtend, deepFromFlat, deepKeys, deepMapValues, isPlainObject, mapKeys, mapValues, _;
 
@@ -83,2 +83,31 @@ _ = require('underscore');
   },
+  deepPick: (function() {
+    var deepGet;
+    deepGet = function(obj, key) {
+      var helper;
+      helper = function(obj, key_arr) {
+        if (key_arr.length === 1) {
+          return obj[_.first(key_arr)];
+        } else {
+          return helper(obj[_.first(key_arr)], _.rest(key_arr));
+        }
+      };
+      return helper(obj, key.split('.'));
+    };
+    return function(obj, keys) {
+      var flat_new_obj;
+      if (!isPlainObject(obj)) {
+        throw new Error("deepPick must be called on an object, not '" + obj + "'");
+      }
+      flat_new_obj = _.reduce(keys, function(new_obj, key) {
+        var val;
+        val = deepGet(obj, key);
+        if (val !== void 0) {
+          new_obj[key] = val;
+        }
+        return new_obj;
+      }, {});
+      return deepFromFlat(flat_new_obj);
+    };
+  })(),
   deepDelete: deepDelete = function(obj, key) {
@@ -126,3 +155,3 @@ if ((key == null) || (obj == null)) {
   },
-  deepFromFlat: function(o) {
+  deepFromFlat: deepFromFlat = function(o) {
     var k, key, oo, part, parts, t;
@@ -129,0 +158,0 @@ oo = {};

No alert changes

Improved metrics

Total package byte prevSize

47999

9.18%

Number of package files

22

4.76%

Lines of code

198

17.16%

Number of lines in readme file

320

4.23%

No dependency changes