firebug

This question already has an answer here: How to use Firebug's debugger functions? 1 answer I am new to FireBug Debugger can anyone say what is step into,step over and step out Step into will cause the debugger to descend into any method calls on the current line. If there are multiple method calls, they'll be visited in order of execution; if there are no method calls, this is same as step over. This is broadly equivalent to following every individual line of execution as would be seen by the interpreter. Step over proceeds to the next line in your current scope (i.e. it goes to the next line

Today i have installed a new version(52) of firefox in machine and add the extension firebug .but it not showing in toolbar. i have restarted several times still no luck and then again i have installed ,intstallation gets success,not showing in toolbar. Again I have customize and enable the firebug but when I clicked it's not responding and showing the firebug inspect tool. On 17-3-2017 uninstalled and installed the 52 version of firefox and add firebug but it not showing there? see the screenshot below. The problem is happen only in the version.Anybody have idea. Sebastian Zartner Firebug is

I need to block tools like Firebug and Chrome Developer Tools in a specific page. How can I do that? I found this code and it works for Firebug: <script> if( window.console && window.console.firebug ){ alert("Sorry! This system does not support Firebug.\nClick OK to log out."); window.location='/login_out'; } </script> But not for Chrome Developer Tools and others. Does anyone know a way of blocking it to most of developer tools? Just FYI, I need this to avoid users to change the html code. I'm using hidden inputs in a form, and sadly, I really need to do this instead using cURL or something

Since last few updates of Firefox our beloved Firebug is integrated into the Firefox Developer Tools and a lot of people including me don't like what happened to Firebug. The built-in developer tools have a very ugly menu system and messed up usability. So, what are the alternatives to the Firefox Developer Tools? Is there a tool with the same usability as Firebug? Alternatives are: Turn off multi-process Firefox . (Though that's only a temporary solution and doesn't bring back all functionality of Firebug. E.g. the Script panel is broken in current versions of Firefox.) Install an old version

JS在执行时才确定值(变量在初始化) JS引擎在解析时会预编译对所有变量和函数预先处理,所以执行时变量与函数都可见 先声明,再引用,在JS最上面先声明好变量OR函数,下面再使用 所有的JS块都属于同一个全局作用域 开发工具:Aptana Firebug HttpWatch try....catch...finally thow new Error("error msg") function customError(message){ this.name = 'CustomError'; this.message = message } customError.prototype = new Error() throw new customError("xxxx") JS 严格区分大小写 骆驼命名法 JS可以不申名变量值,直接给值,但是会当为全局变量(var name = '' / name = '') 全局整个页面可以访问,局部仅在声明的函数中使用 避免变量污染,减少全局变量的使用,可以申明一个容器如: var my = {} my.name={ "fisrtName" : "A" "lastName" : "B" } my.work = { "number" : 12, "time" : "2015-9-14" } JS的基本数据类型 type of 可以检测基本数据类型 0.1

学习新的东西是件可怕的事。对我来说，掌握一项新技能最大的问题是，我不知道自己懂什么。鉴于此，定个计划，学习你感兴趣的东西应该会有用。这篇文章的主旨就是：你为学习JavaScript 制定的蓝图、路线、行动计划!你不必担心找不到最好的资源，先整理些不好的资源，再确定下一步该学什么。遵循它，一步一步来。 任务0：了解什么是JavaScript 在你真正开始学习JavaScript 之前，花一分钟了解一下什么是JavaScript，它有哪些功能。 JavaScript不是jQuery、Flash或Java。与它们不同，它是一种独立的编程语言。 JavaScript 是浏览器语言(尽管现在不完全是)。主要目的是给静态页面增加交互性。在浏览器里，它不会为你更换PHP或Ruby，也不会更改你的HTML或CSS;你可以把它们串在一起使用。另外，它没有你想的那么难学。 补充说明：你应该听过jQuery，它可能是被使用最广泛的JavaScript 库。也许你还听说过其他比较流行的JavaScript 框架，比如Mootools,，YUI，Dojo 等等。可以将它们统一看做JavaScript辅助工具集;当你使用它们的时候，你还在写JavaScript，但都是些很抽象的JavaScript。它会让你事半功倍。 “你甚至可能听到有人说，你应该先学jQuery(或其他库)再学JavaScript

When I am developing in jQuery, I frequently find myself typing selectors into the Chrome/Firebug console and seeing what they give me. They are always nicely formatted as if they were arrays: I am trying to work out what it is that makes the console treat an object as an array. For instance, the following custom object is not treated as an array: function ElementWrapper(id) { this[0] = document.getElementById(id); } If I then add a length property and a splice method, it magically works as an array, with any properties with integer keys treated as members of the arrays: function