knockout-es5
============

Knockout.js meets ECMAScript 5 properties. Read the [introduction and basic usage guide](http://blog.stevensanderson.com/2013/05/20/knockout-es5-a-plugin-to-simplify-your-syntax/).

Installation
============

To use in a bower:

    bower install knockout-es5

Or, get a copy of the [`knockout-es5.min.js` file](https://raw.github.com/SteveSanderson/knockout-es5/master/dist/knockout-es5.min.js)

Then just add a `<script>` tag referencing at. Be sure to place the reference *after* your reference to Knockout itself:
```html
<script src='knockout-x.y.z.js'></script>
<script src='knockout-es5.min.js'></script>
```

If you are using this on the server in Node.js, just require the file as a module:
```js
var ko = require('./knockout-es5');
// Now use ko - it has been enhanced with ES5 features
```

Version without weakmap in build
=
* knockout-es5-clean.js
* knockout-es5-clean.min.js

This files don't have weakmap shim in code. You have to link weakmap shim or use es6 for it.

Recursive traversal of nested objects
=
```js
ko.track(nestedObj, { deep: true });
```
With fields:
```js
ko.track(nestedObj, { deep: true, fields: ['prop1', 'prop2'] });
```
Selecting of nested fields (e.g. `'prop.nested_prop'`) are not yet supported. If someone need this feature, please create an issue.

Usage `fields` prop without `deep`:
```js
ko.track(obj, { fields: ['prop1', 'prop2'] });
```

How to build from source
========================

First, install [NPM](https://npmjs.org/) if you don't already have it. It comes with Node.js.

Second, install Grunt globally, if you don't already have it:

    npm install -g grunt-cli

Third, use NPM to download all the dependencies for this module:

    cd wherever_you_cloned_this_repo
    npm install

Now you can build the package (linting and running tests along the way):

    grunt
    
Or you can just run the linting tool and tests:

    grunt test
    
Or you can make Grunt watch for changes to the sources/specs and auto-rebuild after each change:
    
    grunt watch
    
The browser-ready output files will be dumped at the following locations:

 * `dist/knockout-es5.js`
 * `dist/knockout-es5.min.js`