firebug | 易学教程

Firebug: During breakpoint, can't execute console statement

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问题 I'm seeing the following behavior in Firebug: When the debugger is paused on a breakpoint, if I go to the console and attempt to execute a statement, the Enter key keeps just adding lines instead of executing. I've tried hitting Shift + Enter and Ctrl + Enter also, to no avail. 回答1: Environment I sometimes get this issue on firebug (console), FireFox (dev console), and FireFox developer edition (dev console). Issue Using the "web console" I would type something like alert("test") and hit the

Firebug: how do I see GET parameters?

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问题 I'm using Firebug on Firefox 3.6.3 for Mac. I want to use Firebug to view GET and POST parameters being passed. I have Firebug open at the Net > XHR tab. The panel says 'Net panel activated'. Yet if I then go to google.com and do a search, nothing appears in the XHR tab. (All the HTML, CSS etc appears fine in the other tabs.) Where can I see the GET parameters being passed to Google in Firebug? 回答1: Use the All tab in the NET panel POST parameters can be seen in the NET panel. The first line

Firebug - how can I run multiline scripts or create a new JavaScript file?

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Is there a way in Firebug to start a new script file to apply to page? Basically I want to do work like I'd normally do on the Firebug console but be able to to paste in multi-line functions, etc. It doesn't seem like the console is amenable to that. Jason Bunting Down in the lower-right corner of the FireBug UI you should see a red square icon with an up arrow. Use that and stretch it to a size you like. maybe not within firebug, but you could try some techniques similar to the jQuery bookmarklet. bookmarklet link What about this idea: Assuming your page can already have script tags that

史上最全的WEB前端开发程序员学习清单！

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史上最全的WEB前端开发程序员学习清单！今天为什么要给大家分享这篇文章呢，我发现最近来学前端的特别多，群里面整天都有人问：前端好找工作吗？前端要怎么学啊？前端工资怎么样？前端XX，前端XXX，虽然我回答过无数次这种问题了，但是问这个的还是有很多，今天我就给大伙分享一下前端学习路线，当然不是我自己总结的，毕竟没有那么厉害，就借用腾讯大佬的给大家学习下吧！推荐下我自己的前端学习群：618522268，不管你是小白还是大牛，小编我都挺欢迎，不定期分享干货，包括我自己整理的一份2018最新的前端资料和零基础入门教程，欢迎初学和进阶中的小伙伴。正文开始：最后在对刚刚入门学习的程序员提点建议：君子生非异也，善假于物也”，在学习的过程中还要多浏览一些优秀的网站，善于分析借鉴其设计思路和布局方法，见多方能识广，进而才可以融会贯通，取他人之长为我所用。同时还要善于使用Firebug这个利器。Firebug一方面可以在我们学习过程中帮助我们调试自己的页面，另一方面我们可以使用Firebug方便地查看、分析别人网站的源代码，“偷”也是一种技能! 今天为什么要给大家分享这篇文章呢，我发现最近来学前端的特别多，群里面整天都有人问：前端好找工作吗？前端要怎么学啊？前端工资怎么样？前端XX，前端XXX，虽然我回答过无数次这种问题了，但是问这个的还是有很多，今天我就给大伙分享一下前端学习路线

Can Firebug set breakpoints in external JavaScript files?

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Is there any way in Firebug to set a breakpoint in an external .js file that a page links to so that it can be stepped through? (I suspect I've found a bug in jQuery and I want to be able to step through jQuery as it's handling events to see what it's doing.) Not sure if I understand the question, but I don't think Firebug treats external javascript any differently than internal one. Just go to the "script" tab, select the .js file in the drop down list and set your breakpoint. 来源： https://stackoverflow.com/questions/579920/can-firebug-set-breakpoints-in-external-javascript-files

ajax problem - 200 OK in firebug but red message with no response body

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问题 I have small ajax problem related to cross domain as i see it. On localmachine i created html example with some ajax: in registration text field user types 'username', on every keystroke ajax sends it to local Tomcat, where servlet checks if that username is already used and sends 'taken' reponse back. No problem on localhost at all. As soon as i type used 'username' servlet sends 'taken' response and browser displays it. But, when i put test html page with ajax on remote machine (some free

Firebug debug jumps/breaks on non-existing breakpoint!

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问题 So I have this page with a bunch of jQuery functions. I have no breakpoints at all but Firebug always breaks/jumps to a JS function like there is a breakpoint but there isn't!!! Its also breaks some JS in the page (not everything). I mean, I hit 'play' or 'F8' a couple of times to continue/stop debugging but then some JS functions does not work anymore. Everything works fine when Firebug is turned off. I'm using Firefox 3.6.13 with Firebug 1.6.2. Any idea why its happening and how to fix it??

Load JQuery into any page using Firebug

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问题 Does anyone have a snippet to load jquery onto any page from firebug? I often come across sites that I would prefer to inspect using familiar jq syntax. For example, say I want to extract a list of prices from a page - it would be nice to launch firebug, install jquery from the google CDN, and type $('li.prices').each(...). 回答1: Just saw this bookmarklet for injecting jQuery in another thread 回答2: Another way is to paste this to the Firebug console and hit the execute button. var fileref =

What is the source of the double-dollar sign selector query function in Chrome/Firefox?

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Check this jsfiddle , and have a look at the console. $$ is not defined. Now, open a completely new window, and enter $$ into a console. It defines a function for getting a (jquery-like) array of all the dom elements which match the selector: > $$ bound: function () { return document.querySelectorAll.apply(document, arguments) } Is this being added by Dev tools? It is also present when using Firebug in Firefox. Is it used internally by the tools themselves? ziesemer Well, Firebug Lite defines this as: this.$$=function(selector,doc){if(doc||!FBL.Firebug.chrome){return FBL.Firebug.Selector

火狐插件火狐黑客插件将Firefox变成黑客工具的七个插件

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目前很多插件不支持 Firefox 3.5 哦 1、Add N Edit Cookies 查看和修改本地的Cookie，Cookie欺骗必备。下载： http://code.google.com/p/editcookie/downloads/list 2、User Agent Switcher 修改浏览器的User Agent，可以用来XSS。下载： https://addons.mozilla.org/zh-CN/firefox/addon/59 3、RefControl 修改Referer引用，也可以用来XSS或者突破一些防盗链。下载： https://addons.mozilla.org/zh-CN/firefox/addon/953 4、Live HTTP Headers 记录本地的Get和Post数据，并可修改数据后重新提交。下载： https://addons.mozilla.org/zh-CN/firefox/addon/3829 5、Poster 用来Post和Get数据。下载： https://addons.mozilla.org/fr/firefox/addon/2691 6、HackBar 小工具包，包含一些常用的工具。(SQL injection,XSS,加密等) 下载： http://devels-playground.blogspot.com