Nested key support

test/utils.js

@@ -0,0 +1,7 @@
+const u = require('../src/utils')
+
+describe('Utils', function() {
+    it('deep_assign', function() {
+        u.deep_assign({}, 'a.b.c', 1).should.deep.equal({a: {b: {c: 1}}})
+    })
+})