hoek - npm Package Compare versions

Comparing version 0.1.0 to 0.2.0

lib/index.js

@@ -223,2 +223,19 @@ // Load modules
 
+// Convert an object key chain string ('a.b.c') to reference (object[a][b][c])
+
+exports.reach = function (obj, chain) {
+
+    var path = chain.split('.');
+    var ref = obj;
+    path.forEach(function (level) {
+
+        if (ref) {
+            ref = ref[level];
+        }
+    });
+
+    return ref;
+};
+
+
 // Inherits a selected set of methods from an object, wrapping functions in asynchronous syntax and catching errors
@@ -225,0 +242,0 @@

package.json

 {
   "name": "hoek",
   "description": "General purpose node utilities",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "author": "Eran Hammer <[e-mail]> (http://hueniverse.com)",
@@ -6,0 +6,0 @@ "contributors":[

test/index.js

@@ -229,2 +229,51 @@ // Load modules
 
+    describe('#reach', function () {
+
+        var obj = {
+            a: {
+                b: {
+                    c: {
+                        d: 1,
+                        e: 2
+                    },
+                    f: 'hello',
+                },
+                g: {
+                    h: 3
+                }
+            },
+            i: function () { }
+        };
+
+        it('returns a valid member', function (done) {
+
+            expect(Hoek.reach(obj, 'a.b.c.d')).to.equal(1);
+            done();
+        });
+
+        it('returns null on null object', function (done) {
+
+            expect(Hoek.reach(null, 'a.b.c.d')).to.not.exist;
+            done();
+        });
+
+        it('returns null on missing member', function (done) {
+
+            expect(Hoek.reach(obj, 'a.b.c.d.x')).to.not.exist;
+            done();
+        });
+
+        it('returns null on invalid member', function (done) {
+
+            expect(Hoek.reach(obj, 'a.b.c.d-.x')).to.not.exist;
+            done();
+        });
+
+        it('returns function member', function (done) {
+
+            expect(typeof Hoek.reach(obj, 'i')).to.equal('function');
+            done();
+        });
+    });
+
     describe('#inheritAsync', function () {
@@ -231,0 +280,0 @@

No alert changes

Improved metrics

Total package byte prevSize

72396

increased by2.17%

Lines of code

808

increased by6.32%

No dependency changes