Data binding in backbone js

Scenario: I have multiple Models in a Collection with a view for each Model and a Parent View for the Collection. Handlebar Template for HTML: <div id="contentarea"> <div class="news"> <div> {{ModelItem.text}} </div> <span>Number of likes: {{ModelItem.likes}} </span> <span>Number of dislikes: {{ModelItem.dislikes}} </span

数据绑定在主干js上

场景:我在一个集合中有多个模型,每个模型都有一个视图,集合有一个父视图。 HTML的手柄模板: <div id="contentarea"> <div class="news"> <div> {{ModelItem.text}} </div> <span>Number of likes: {{ModelItem.likes}} </span> <span>Number of dislikes: {{ModelItem.dislikes}} </span> <div class="btn-group">

Backbone model toJSON does not render all attributes

I've found questions like this: Backbone model .toJSON() doesn't render all attributes to JSON by model.set But they were not solved. I have a similar problem. Here's a sample code: Animal = Backbone.Model.extend({ ... ..., initStats:function(){ this.attributes.stats = []; var that = this; var type = new Species(); type.store.findAll(t

骨干模型toJSON不会呈现所有属性

我发现类似这样的问题:Backbone model .toJSON()不会将model.set的所有属性呈现给JSON 但他们没有解决。 我有一个类似的问题。 以下是一个示例代码: Animal = Backbone.Model.extend({ ... ..., initStats:function(){ this.attributes.stats = []; var that = this; var type = new Species(); type.store.findAll(type, function(tx, res){ var base = JSON

How to set a dynamic property on a model with Backbone.js

Story: I have a lot of properties that needs to be set. Since they have similarities I choose to read out the class the inputbox is part of as property name. Problem: A dynamic property of an object can be set, just like an associative array. So I could do var customattribute = this.$el.parents('div').attr('id'); var value = $(e.currentTarget()).val(); this.model.attributes[customattribute]

如何使用Backbone.js在模型上设置动态属性

故事:我有很多需要设置的属性。 由于他们有相似之处,我选择将inputbox作为属性名称的一部分读出该类。 问题:可以像关联数组一样设置对象的动态属性。 所以我可以做 var customattribute = this.$el.parents('div').attr('id'); var value = $(e.currentTarget()).val(); this.model.attributes[customattribute] = value; 但是这不会引发模型的变化事件。 我可以手动触发更改事件,但这不会更新this.model.changedAtt

Help with data transfer/storage from one HTML form to another

In my application, I have two forms for creating a user. Form 1: I input the following details from the user in form 1. Full Name Email Address Gender Date of Birth Profile Image AND in the Form 2, I ask him to fill in his desired @username, and password Problem is that I have associated my models in the following fashion, that User has_one UserProfile UserProfile belongs_t

帮助从一个HTML表单到另一个HTML表单的数据传输/存储

在我的应用程序中,我有两种创建用户的表单。 表格1:我从表格1中的用户处输入以下详细信息。 全名 电子邮件地址 性别 出生日期 档案图像 在表格2中,我要求他填写他的 所需的@username和 密码 问题在于,我以下列方式将我的模型关联在一起 User has_one UserProfile UserProfile belongs_to User & 电子邮件地址,用户名和密码是用户模型的属性。 其余的属性属于UserProfile模型。 但在我的表

Hide JavaScript at a smaller screen

I am setting up my website to be responsive, and I want to know how to hide my livechat JavaScript when the screen size is smaller than 700px. My current livechat JavaScript is function wsa_include_js(){ var wsa_host = (("https:" == document.location.protocol) ? "https://" : "http://"); var js = document.createElement("script"); js.setAttribute("language", "javascript"); js.setAttribu

在较小的屏幕上隐藏JavaScript

我正在设置自己的网站以进行响应,并且我想知道如何在屏幕尺寸小于700像素时隐藏我的即时聊天JavaScript。 我目前的即时聊天JavaScript是 function wsa_include_js(){ var wsa_host = (("https:" == document.location.protocol) ? "https://" : "http://"); var js = document.createElement("script"); js.setAttribute("language", "javascript"); js.setAttribute("type", "text/javascript"); js.setAttribute(

How do I get Google Analytics to track individual images on a slideshow?

I have a jQuery slideshow, I'm using the cycle plugin. I'm decent with jQuery, but I don't know how I should tie it in with Google Analytics to show me how many times each image is requested. I've looked around online but I haven't been able to find any good documentation for it. Can someone give me a simple example and maybe a link to the documentation supporting the exa

如何让Google Analytics(分析)跟踪幻灯片上的单个图像?

我有一个jQuery幻灯片,我正在使用循环插件。 我对jQuery很体面,但我不知道该如何配合Google Analytics来向我显示每个图片需要多少次。 我在网上浏览过,但我一直没有找到任何好的文档。 有人可以给我一个简单的例子,也可以链接到支持这个例子的文档吗? 谢谢! 编辑: 关键只是使用这段代码发送一个事件: _gaq.push(['_trackEvent', 'PageLocation', location.href]); 但是,您需要调用Google Analytics的异步

Where does the context live in an OOP Javascript Pong game?

To practice my OOP knowledge I'm making a Pong game in javascript (I know, I know, it's like playing Stairway to Heaven in a guitar shop). I've had several functioning versions of the game by implementing several different techniques including prototypal based OOP and functional style. However I'm not doing this to get a functional game I'm doing it to learn. I'm using

上下文在OOP Javascript Pong游戏中生活在哪里?

为了练习我的面向对象知识,我使用javascript制作了一个Pong游戏(我知道,我知道它就像在吉他店里玩天国的阶梯一样)。 通过实施几种不同的技术,包括基于原型的OOP和功能风格,我已经有了几个功能版本的游戏。 然而,我没有这样做来获得我正在学习的功能性游戏。 我正在使用html5画布和普通ol'javascript,没有框架(好吧,用于捕获键盘的一点点jQuery)。 我有我的Pong对象代表我的比赛。 Pong有一个属性ctx ,其中

JavaScript variable: var a =(3,4,7);

This question already has an answer here: What does a comma do in JavaScript expressions? 5 answers It's called comma operator . By wrapping the right hand expression in parentheses we create a group and it is evaluated each of its operands and returns the last value. From MDN The comma operator evaluates each of its operands (from left to right) and returns the value of the last op

JavaScript变量:var a =(3,4,7);

这个问题在这里已经有了答案: JavaScript表达式中的逗号是做什么的? 5个答案 它被称为逗号运算符 。 通过将右手表达式包含在圆括号中,我们创建一个组,并对其每个操作数进行评估并返回最后一个值。 来自MDN 逗号运算符评估每个操作数(从左到右)并返回最后一个操作数的值。 当您想编写缩减程序并需要缩小代码时,逗号运算符很有用。 例如, print = () => console.log('add') add_proc = (a,b) => a +

How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)

My version of node is always v0.6.1-pre even after I install brew node and NVM install v0.6.19. My node version is: node -v v0.6.1-pre NVM says this (after I install a version of node for the first time in one bash terminal): nvm ls v0.6.19 current: v0.6.19 But when I restart bash, this is what I see: nvm ls v0.6.19 current: v0.6.1-pre default -> 0.6.19 (-> v0.6.19) So where i

如何完全卸载Node.js,并从头开始重新安装(Mac OS X)

即使在安装brew节点和NVM安装v0.6.19后,我的节点版本始终为v0.6.1-pre。 我的节点版本是: node -v v0.6.1-pre NVM说这一点(在我第一次在一个bash终端中安装一个节点版本之后): nvm ls v0.6.19 current: v0.6.19 但是当我重新启动bash时,这就是我所看到的: nvm ls v0.6.19 current: v0.6.1-pre default -> 0.6.19 (-> v0.6.19) 那么这个幻像节点0.6.1-pre版本在哪里,我该如何摆脱它? 我试图通过NPM

How do i stop a javascript executing?

How can i stop executing this Javascript after executing? Usually this problem is caused because of missing return statements in functions. Well, both functions return something. So why does the Skript continue running and what can i do against it? var system = require('system'); var args = system.args; function hexToRgb(hex) { // Expand shorthand form (e.g. "03F") to full form (e.g. "0033

我如何停止执行JavaScript?

如何在执行后停止执行此Javascript? 通常这个问题是由于函数中缺少返回语句引起的。 那么,两个函数都会返回一些东 那么为什么Skript会继续运行,我能做些什么呢? var system = require('system'); var args = system.args; function hexToRgb(hex) { // Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF") var shorthandRegex = /^#?([a-fd])([a-fd])([a-fd])$/i; hex = hex.replace(shorthandRegex