Ternary Operator with destructuring

From http://blog.johnnyreilly.com/2016/08/the-ternary-operator-meets-destructuring.html?m=1
By @johnnyreilly :rose:

``` ts
const { legWear, coat } = weather === "good"
? { legWear: "shorts", coat: false }
: { legWear: "jeans", coat: true }
```

FWIW I've done the following historically.

``` ts
const thisOrThat = (someCondition) ? "this" : "or that"
const thisOrThatAnother = (someCondition) ? "thisAnother" : "or thatAnother"
```

But I like what John's done better :heart:

> add to tips

Locate the book's tips section and review how similar TypeScript examples are presented. Add the supplied ternary-with-destructuring example and verify that the wording and formatting fit the surrounding content; done means the tip is included in the book.

Written by the indexing model from the issue text.