Irina Glushko 2389e7160b HW1 done | %!s(int64=3) %!d(string=hai) anos | |
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.. | ||
test | %!s(int64=3) %!d(string=hai) anos | |
.npmignore | %!s(int64=3) %!d(string=hai) anos | |
LICENSE | %!s(int64=3) %!d(string=hai) anos | |
README.md | %!s(int64=3) %!d(string=hai) anos | |
index.coffee | %!s(int64=3) %!d(string=hai) anos | |
index.js | %!s(int64=3) %!d(string=hai) anos | |
package.json | %!s(int64=3) %!d(string=hai) anos |
Higher-order functions for easier error handling.
if (err) return cb(err);
be gone!
npm install iferr
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);
}));
}));
}
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)
MIT