firebug

What is the behavior of typing {a:1} giving 1, and {a:1, b:2} giving an error in a Javascript console?

由 泄露秘密 提交于 2019-11-26 10:01:33
问题 The following will show in Firebug or in jsconsole.com or in other Javascript interactive console: >>> foo = { a : 1, b : 2.2 } Object { a=1, more...} >>> foo.a 1 >>> foo.b 2.2 >>> { a : 1, b : 2.2 } SyntaxError: invalid label { message=\"invalid label\", more...} >>> { a : 1 } 1 why is the 1 returning for {a : 1} and why is {a : 1, b : 2.2} giving an error? In Ruby, they would come back the same way you defined it. 回答1: The second line is giving you a SyntaxError because the { token at the

Why got Firebug removed after updating Firefox to version 50?

由 心已入冬 提交于 2019-11-26 09:52:50
问题 After updating Firefox to version 50.0 my Firebug opens the default developer tools. The original Firebug doesn\'t work anymore. I have always preferred Firebug as my default debugging tool. I want the original Firebug back in Firefox 50. How can I do that? 回答1: Firebug does not work anymore once multi-process Firefox (separate processes for the Firefox UI and the websites) is enabled. See the related post in the Firebug blog. You may be able to reenable Firebug by setting the preferences

Suggestions for debugging print stylesheets?

由 ﹥＞﹥吖頭↗ 提交于 2019-11-26 08:42:46
问题 I\'ve recently been working on a print stylesheet for a website, and I realized that I was at a loss for effective ways to tweak it. It\'s one thing to have a reload cycle for working on the on-screen layout: change code command-tab reload but that whole process gets much more arduous when you\'re trying to print: change code command-tab reload print squint at print-preview image open PDF in Preview for further inspection Are there tools I\'m missing out on here? Does WebKit\'s inspector have

Why can't I save CSS changes in Firebug? [closed]

由 依然范特西╮ 提交于 2019-11-26 08:40:57
问题 Firebug is the most convenient tool I\'ve found for editing CSS - so why isn\'t there a simple \"save\" option for CSS? I am always finding myself making tweaks in Firebug, then going back to my original .css file and replicating the tweaks. Has anyone come up with a better solution? EDIT: I\'m aware the code is stored on a server (in most cases not my own), but I use it when building my own websites. Firebug\'s just using the .css file Firefox downloaded from the server, it knows precisely

Why does firebug add <tbody> to <table>?

由 早过忘川 提交于 2019-11-26 08:30:45
I viewed the html source code, there is no <tbody> , but when viewed via firebug in the HTML tab, <tbody> appears. Any idea why? To summarize the excellent explanations given in the answers and comments by bobince, Kieron, Alohci and others: Firebug just displays the DOM of the parsed page. Due to complicated HTML parsing rules, the DOM will "differ" (in some sense) from the source HTML. In this case the TBODY element in the DOM is added by the HTML parser. Note that this weird parsing is limited to text/html documents and in XHTML the DOM corresponds closely to the source XML. This behavior

How can I use console logging in Internet Explorer?

由 你说的曾经没有我的故事 提交于 2019-11-26 06:20:04
问题 Is there a console logger for IE? I\'m trying to log a bunch of tests/assertions to the console but I can\'t do this in IE. 回答1: You can access IE8 script console by launching the "Developer Tools" (F12). Click the "Script" tab, then click "Console" on the right. From within your JavaScript code, you can do any of the following: <script type="text/javascript"> console.log('some msg'); console.info('information'); console.warn('some warning'); console.error('some error'); console.assert(false,

How to inspect element for Selenium v3.6 as FireBug is not an option any more for FF 56?

由 点点圈 提交于 2019-11-26 05:49:49
问题 I am trying to find a way to use FireBug for FF. Unfortunately it\'s not supported for selenium v3.6 . What can be done if I have to locate the elements, will \"Inspect\" element will be sufficient? If I get down to less version of selenium, will that help? 回答1: If you visit the GitHub Page of FirePath, it clearly mentions that : FirePath is a Firebug extension that adds a development tool to edit, inspect and generate XPath expressions and CSS3 Selectors Now if you visit the Home Page of

Best Way to View Generated Source of Webpage?

由 淺唱寂寞╮ 提交于 2019-11-26 05:24:32
问题 I\'m looking for a tool that will give me the proper generated source including DOM changes made by AJAX requests for input into W3\'s validator. I\'ve tried the following methods: Web Developer Toolbar - Generates invalid source according to the doc-type (e.g. it removes the self closing portion of tags). Loses the doctype portion of the page. Firebug - Fixes potential flaws in the source (e.g. unclosed tags). Also loses doctype portion of tags and injects the console which itself is invalid

Tools to selectively copy HTML+CSS+JS from existing sites [closed]

由 ╄→гoц情女王★ 提交于 2019-11-26 04:02:39
问题 Like most web developers, I occasionally like to look at the source of websites to see how their markup is built. Tools like Firebug and Chrome Developer Tools make it easy to inspect the code, but if I want to copy an isolated section and play around with it locally, it would be a pain to copy all the individual elements and their associated css. And probably just as much work to save the entire source and cut out the unrelated code. It would be great if I could right-click a node in Firebug

Differences between socket.io and websockets

由 不想你离开。 提交于 2019-11-26 03:46:07
问题 What are the differences between socket.io and websockets in node.js? Are they both server push technologies? The only differences I felt was, socket.io allowed me to send/emit messages by specifying an event name. In the case of socket.io a message from server will reach on all clients, but for the same in websockets I was forced to keep an array of all connections and loop through it to send messages to all clients. Also, I wonder why web inspectors (like Chrome/firebug/fiddler) are unable
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