D7net
Home
Console
Upload
information
Create File
Create Folder
About
Tools
:
/
opt
/
alt
/
alt-nodejs12
/
root
/
lib
/
node_modules
/
npm
/
node_modules
/
iferr
/
Filename :
README.md
back
Copy
# 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