7. Promises

I promise you the world, my love ... make a promise ... keep a promise ... one man, one word.

MDN we salute you.

Read this, source: MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise

This is also an excellent source, recommended by the Angular Documentation Team, plus he is German. I am doubly proud. You might want to read the whole book, it is Open Source and available free on-line: http://exploringjs.com/es6/ch_promises.html