opera | 易学教程

Difference in jQuery with XML namespace and xhr.responseXML between Opera and Firefox

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问题 Consider this: <!DOCTYPE HTML> <html><head><title>XML-problem</title> <script src="jquery-1.3.2.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function() { $('<p/>').load("text.xml", function(responseText, textStatus, xhr) { var xml = $(xhr.responseXML); var x_txt = xml.find('atom\\:x').text(); $(this).text(x_txt).appendTo('#container'); }); }); </script> </head><body><div id="container" /></body></html> This script should load text.xml when the document has been

Why do HTML Entities get garbled in View Source?

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问题 I've seen this behavior across several different browsers over the years (Chrome, Firefox, and Opera, at least), but most recently it happens only in Opera and Chrome - I think Firefox fixed it at some point. If I have a page which pushes a fairly sizeable chunk of data (several thousand lines of HTML) to the browser, if I use any HTML Entities in the data, they come through malformed when you view the source code. For example, I put a "lower right pencil" entity ( ✎ - or ✎ ) throughout the

What's the correct way to use SVG in Opera?

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问题 Can anyone tell me how to force Opera opera to render SVG in html? <svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="142" height="142"> <rect x="19" y="19" width="104" height="104" r="0" rx="0" ry="0" fill="none" stroke="#000000" style="stroke-opacity: 1; stroke-width: 2;" stroke-opacity="1" stroke-width="2"/> <rect x="36" y="36" width="70" height="70" r="0" rx="0" ry="0" fill="none" stroke="#000000" style="stroke-opacity: 1; stroke-width: 2;" stroke-opacity="1" stroke-width="2"/>

How do I simulate a modal dialog from within an Applet?

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问题 On setVisible(true), I call the following code to start a modal dialog: private synchronized void startModal () { try { if (SwingUtilities.isEventDispatchThread()) { EventQueue theQueue = getToolkit().getSystemEventQueue(); while (isVisible()) { AWTEvent event = theQueue.getNextEvent(); Object source = event.getSource(); if (event instanceof ActiveEvent) { ((ActiveEvent) event).dispatch(); } else if (source instanceof Component) { ((Component) source).dispatchEvent(event); } else if (source

<noscript> not working in Opera 11?

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问题 I am testing my noscript tags which display content when javascript is disabled, this works in Safari, Chrome, Firefox, Camino, IE6, IE7, IE8, IE9, basically everything but Opera (I'm running version 11, not sure if its isolated to that version). In Opera 11 nothing is displayed... is the noscript tag not supported? and what is the alternative? Nothing surprising: <noscript>Please enable JavaScript.</noscript> Located between the body tags. <html> <body> <script>alert('Hello World');</script>

How to enable built-in VPN in OperaDriver?

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问题 The opera browser has a built-in VPN which allows you to hide your IP while browsing. My question is can the VPN be turned on while using OperaDriver with selenium in python? Attempt and problem in detail: I have this script that goes to a website to display my IP address. from selenium import webdriver from selenium.webdriver.opera.options import Options from time import sleep driver = webdriver.Opera(executable_path=r'/path/to/operadriver') driver.get('https://whatismyipaddress.com') sleep

Script to automate URL opening in multiple tabs in Firefox or Opera from a text file

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问题 I have a text file with lots of links-each line has a link (i.e the separator is '\n'). i want to write a script so that each link opens in a different tab in Firefox or Internet explorer. How can I do this? I'm on Windows 7 回答1: Create a text file called whatever.bat and put it on your desktop. edit the file and enter: set "fileList=" FOR /F "usebackq delims==" %%i IN ("C:\Documents and Settings\mdevine\Desktop\urls.txt") DO call set "fileList=%%fileList%% %%i" start firefox %fileList% close

如何使用JavaScript重新加载页面

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 如何使用JavaScript重新加载页面？我需要一种适用于所有浏览器的方法。 #1楼如果你把 window.location.reload(true); 在页面开始时，没有其他条件限制运行该代码的条件，页面将加载，然后继续重新加载自身，直到关闭浏览器。 #2楼您可以使用 window.location.reload(); 执行此任务 window.location.reload(); 。由于有很多方法可以执行此操作，但我认为这是使用JavaScript重新加载同一文档的适当方法。这是解释可以使用JavaScript window.location 对象获取当前页面地址（URL）将浏览器重定向到另一个页面重新加载同一页面 window ：在JavaScript中代表浏览器中的打开窗口。 location ：在JavaScript中保存有关当前URL的信息。 location 对象就像 window 对象的一部分，可以通过 window.location 属性来调用。 location 对象具有三种方法： assign() ：用于加载新文档 reload() ：用于重新加载当前文档 replace() ：用于将当前文档替换为新文档所以在这里我们需要使用 reload()

setSelectionRange not behaving the same way across browsers?

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问题 I found this on a different question: setCaretToPos = function(input, selectionStart, selectionEnd){ if(input.setSelectionRange){ input.focus(); input.setSelectionRange(selectionStart, selectionEnd); }else if(input.createTextRange){ var range = input.createTextRange(); range.collapse(true); range.moveEnd('character', selectionEnd); range.moveStart('character', selectionStart); range.select(); } }; setCaretToPos(8, 12); It should select text from a text area between the 8th character and 12th

FW: 认识 Iconfont 以及什么是 .eot、.woff、.ttf、.svg

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 认识 Iconfont 以及什么是 .eot、.woff、.ttf、.svg 一、Iconfont 1. 概述在前端作业中，二十年前只有页面中铺满文字就算上线产品，现如今，不加点俏皮的“图标”会让页面显得很 Low 很 Low。图标在写这篇文章之前，我一直以为上图中的“图标”是一个个的图片组成，但学习总是给人新知，现在我知道了它们只是一种字体，类似于“宋体”、“楷体”这种。如果我们要使用它们，也只需要在 css 文件中使用 @font-face 引入这种字体即可。@font-face 是 css3 的一个语法，刚兴趣的可以自行阅读 @font-face 用法。 2. Iconfont 介绍 Iconfont 是阿里提供了一个图标库，你可以想象成是一个售卖图标的超市，挑选你需要的图标放入购物车，然后 Iconfont 会为你打包你购物车里的图标，自动生成一种新的字体，你可以选择下载到本地，在你的项目中引入这种字体，这样即便没有网络的情况也可以使用图标。这种模式的一大优点就是只挑选出需要的图标，不会像其他图标库那样直接下载一整个图标库的内容，尽管你可能只会使用到其中一到两个图标。要知道，有的项目打包上线对大小是有严格要求的，比如微信小程序打包之后的代码大小就要控制在 1 M以下。关于如何使用