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Current File : /usr/lib/node_modules/npm/node_modules/iferr/README.md
# iferr

Higher-order functions for easier error handling.

`if (err) return cb(err);` be gone!

## Install
```bash
npm install iferr
```

## Use

### JavaScript/ES6 example
```js
var iferr = require('iferr');

function get_friends_count(id, cb) {
  User.load_user(id, iferr(cb, user =>
    user.load_friends(iferr(cb, friends =>
      cb(null, friends.length)
    ))
  ))
}
```

### JavaScript/ES5 example
```js
var iferr = require('iferr');

function get_friends_count(id, cb) {
  User.load_user(id, iferr(cb, function(user) {
    user.load_friends(iferr(cb, function(friends) {
      cb(null, friends.length)
    }))
  }))
}
```

### CoffeeScript example
```coffee
iferr = require 'iferr'

get_friends_count = (id, cb) ->
  User.load_user id, iferr cb, (user) ->
    user.load_friends iferr cb, (friends) ->
      cb null, friends.length
```

(TODO: document tiferr, throwerr and printerr)

## License
MIT

Youez - 2016 - github.com/yon3zu
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