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Updated Tips section

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Sahat Yalkabov
2014-02-02 06:10:00 -05:00
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@ -248,12 +248,12 @@ Recommended Client-Side libraries
Pro Tips Pro Tips
-------- --------
- When you install a new npm package, add a *--save* flag and it will be automatially - When you install a new npm package, add a *--save* flag and it will be automatially
added to `package.json` as well. For example, `npm install moment --save`. added to `package.json` as well. For example, `npm install --save moment`.
- Use [async.parallel()](https://github.com/caolan/async#parallel) when you neeed to run multiple - Use [async.parallel()](https://github.com/caolan/async#parallel) when you neeed to run multiple
asynchronous tasks, and then render a page, but only when all tasks are completed. For example, you might asynchronous tasks, and then render a page, but only when all tasks are completed. For example, you might
want to scrape 3 different websites for some data (async operation) and render the results want to scrape 3 different websites for some data (async operation) and render the results
on a page after all 3 websites have been scraped. on a page after all 3 websites have been scraped.
- Need to find a specific object in an array? Use [_.findWhere](http://underscorejs.org/#findWhere) function from Underscore.js. - Need to find a specific object inside an Array? Use [_.findWhere](http://underscorejs.org/#findWhere) function from Underscore.js. For example, this is how you would retrieve a Twitter token from database: `var token = _.findWhere(req.user.tokens, { kind: 'twitter' });`, where `req.user.tokens` is an Array, and a second parameter is an object with a given key/value.
FAQ FAQ
@ -497,7 +497,7 @@ Express.js has `app.get`, `app.post`, `app.put`, `app.del`, but for the most par
If you just want to display a page, then use `GET`, if you are submitting a form, sending a file then use `POST`. If you just want to display a page, then use `GET`, if you are submitting a form, sending a file then use `POST`.
Here is a typical workflow of adding new routes to your application. Let's say we are building Here is a typical workflow of adding new routes to your application. Let's say we are building
a page that lists all books from the database. a page that lists all books from database.
**Step 1.** Start by defining a route. **Step 1.** Start by defining a route.
```js ```js
@ -556,7 +556,7 @@ difficult to maintain everything in a single file.
That's all there is to it. Express.js is super simple to use. That's all there is to it. Express.js is super simple to use.
Most of the time you will be dealing with other APIs to do the real work: Most of the time you will be dealing with other APIs to do the real work:
[Mongoose](http://mongoosejs.com/docs/guide.html) for querying the database, socket.io for sending and receiving messages over websockets, [Mongoose](http://mongoosejs.com/docs/guide.html) for querying database, socket.io for sending and receiving messages over websockets,
sending emails via [Nodemailer](http://www.nodemailer.com/), form validation using [express-validator](https://github.com/ctavan/express-validator) library, sending emails via [Nodemailer](http://www.nodemailer.com/), form validation using [express-validator](https://github.com/ctavan/express-validator) library,
parsing websites using [Cheerio](https://github.com/MatthewMueller/cheerio), and etc. parsing websites using [Cheerio](https://github.com/MatthewMueller/cheerio), and etc.