# Reading material for the eight lecture:

```
In week eight we will discuss the following topics:
• (re)writing data structures (in JSON)
• Closures
• Promises
```

### Here are resources that we like you to read as a preparation for the coming lecture:

Some nice resources about promises :ring:
- [Googles post about Promises](https://developers.google.com/web/fundamentals/getting-started/primers/promises)
- [A nice article from David Walsh](https://davidwalsh.name/promises)
- [A real life example](https://github.com/mdn/js-examples/blob/master/promises-test/index.html)
- [stackoverflow]http://stackoverflow.com/questions/13343340/calling-an-asynchronous-function-within-a-for-loop-in-javascript

- [Closures](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Closures)
- [Why closures are helpful with async code](http://stackoverflow.com/questions/13343340/calling-an-asynchronous-function-within-a-for-loop-in-javascript)

The last one about [promises](https://www.youtube.com/watch?v=WBupia9oidU)...