jEngine: Scope Installation npm install jengine-scope --save or bower install jengine-scope --save Usage var s1 = new Scope({ foo: 'bar', overlap: 'v1', obj: { value: 'pristine' } });var s2 = s1.$$new({ overlap: 'v2' }); var s3 = s2.$$new(); s3.foo = 'changed';s3.obj.value = 'dirty';