| // basic error handling with async functions | |
| async function getData(param) { | |
| if (isBad(param)) { | |
| throw new Error("this is a bad param") | |
| } | |
| // ... | |
| } | |
| // basic promise-based error handling example | |
| function getData(param) { |
| // async function to show user data | |
| async function displayUserData() { | |
| let me = await fetch('/users/me') | |
| console.log(me) | |
| } | |
| // promise-based equivalent | |
| function displayUserData() { | |
| return fetch('/users/me').then(function(me) { | |
| console.log(me) |
| // here is an async function | |
| async function getNumber() { | |
| return 4 // actually returns a Promise | |
| } | |
| // the same function using promises | |
| function getNumber() { | |
| return Promise.resolve(4) | |
| } |
SVG is arguably going to be the main image format of the modern web. I recently wrote an article for Safari Books Online called SVG Icons for New Devices that covers some of the basics of dealing with SVG. This article covers more the pain points of using SVG in production and as it turns out there are many.
Here's how you link to your amazing vector image.
<img src="/images/logo.svg">
| { test: /modernizr.*/, loader: 'imports?this=>window!exports?window.Modernizr' },` |
| // oj3 implementation | |
| angular.module('odesk').factory('oj3', function() { | |
| return { | |
| widgets: odesk.mediator.widgets, | |
| trigger: function($scope, event, data) { | |
| // i don't know, we aren't an instance | |
| }, | |
| registerWidget: function(name, $scope) { | |
| // this won't quite work, because $scope doesn't talk OJ3 events | |
| oj3.registerWidget(name, $scope); |
| $.ajax({ | |
| url: 'https://www.odesk.com/', | |
| success: function() { | |
| $.ajax({ | |
| url: 'https://www.odesk.com/', | |
| success: function() { | |
| // so much nesting | |
| } | |
| }); | |
| }); |
| // this will cause an infinite loop | |
| var express = require('express'); | |
| var app = express(); | |
| app.get('/', function(req, res) { | |
| res.send(express.toast, "bla"); | |
| }); | |
| app.listen(2222); |
| "use strict"; | |
| exports.reporter = function(errors, data, opts, cb) { | |
| setTimeout(function() { | |
| console.log(errors.length ? "FAILED" : "OK"); | |
| }, 50); | |
| }; | |
| exports.reporter.async = true; |
| define(function(require) { | |
| var Backbone = require('backbone') | |
| var template = require('text!../../template/newThread.html') | |
| return Backbone.View.extend({ | |
| el: '#container', | |
| template: _.template(template), | |
| initialize: function () { | |
| this.render() | |
| var Contact = require('model/contact') |