compatibility

Java SE 8: Would a Java 7 compiled JAR be compatible completely with Java 8?

萝らか妹 提交于 2019-12-02 04:40:36
I compiled my old JAR files in Java 7 and my production environment has Java 8. Is there anything I need to be careful about directly deploying the JAR files onto Java 8 Environment? I test ran them on Java 8 and it worked fine. Could I encounter any problems or should I be fine? I was wondering this because I was debating removing Java 8 and installing Java 7. EDIT: A side question: Do companies update their code when they update their Java version? I can't imagine how painful this must be so have your app working on a previous version and then completely fail on the new version. I was

PDF.js is randomly crashing the Google Chrome tab

ぃ、小莉子 提交于 2019-12-02 04:29:17
My problem may seem a bit vague (it is to me too), but here is my attempted explanation of it. A few months ago, I implemented PDF.js in my web application. It was really useful, and I am using it for interactions with my clients. Suddenly, last week, my clients reported to me "Aw, Snap" messages in Google Chrome on their PCs when they try to launch PDF.js. I have an iMac and two PCs at home, so I decided to test this out. When I used Google Chrome on my iMac to launch PDF.js, I found it worked fine. When I used Google Chrome on my first PC to launch PDF.js, I found it worked fine. When I used

Do modern browsers support onbeforeprint / onafterprint HTML events?

限于喜欢 提交于 2019-12-02 03:21:28
I am trying to update content of my page for printing. I want to have labels (spans) for each input element (textboxes, lists, etc.) to prevent text-cutoff when printing. I want to make sure before printing that all these labels reflect the most up-to-date user entered values from their respective input fields. My first idea was to just put a label after each textbox, and bind it with the same value on page render, and then hide/show the input or the label based on CSS media attribute. But then I also need to have onchange handlers for every input element to update its respective label every

jQuery Browser Compatibility (IE)

自作多情 提交于 2019-12-02 01:32:32
Since the source code I am trying to show you is rather long and complex, I am simply going to provide a link to the page I am having troubles with. http://www.thesportinghub.com/lms/make-my-picks If you work with this script in Google Chrome or the latest versions of Firefox (5 or 6), you will notice how the jQuery in this script is intended to work. It works exactly how I want it to work in those browsers. However, I am currently having trouble figuring out why it is not working correctly in IE6, IE7, and IE8... I am willing to say "whatever" to IE6, but I am really hoping to get this to

Why IE8 is in IE7 mode. Variable “IE” == 7

老子叫甜甜 提交于 2019-12-02 01:32:14
问题 I have the header in my HTML page like this below and I open this site in IE8. When I look at it in "Web Developer" the "if IE 7" is active. WebBrowser set BrowserMode on "IE8 Compact VIew" and "Document Mode" on "IE7 standards". I have javascript on the site, which doesn't work good with these settings. Why does it happen? Why IE variable is equal 7? Why Browser is in these mode? <!doctype html> <!-- paulirish.com/2008/conditional-stylesheets-vs-css-hacks-answer-neither/ --> <!--[if lt IE 7

Minimum OS X and xcode requirements for ios 8.1 development

不羁岁月 提交于 2019-12-02 01:28:35
New to iOS development, still figuring out stuff. Just purchased Apple Developer account! Could anyone please let me know if it's possible to run xcode 6 and xcode 5 compiled ipa on iPad device running iOS 8.1 I can't install xcode 6.1 because I think it requires OS X 10.10 yosemite In other words I want to know what's the least OS X and xcode version requirement in order to build an application that could run on my iPad running iOS 8.1 Many thanks As a licensed developer, you can download versions of Xcode at the Downloads for Apple Developers page. You need Xcode 6.1 to develop with the iOS

Links containing a Label tag are not clickable on IE

别来无恙 提交于 2019-12-02 01:09:56
问题 I've come across an unusual situation with general IE compatibility. The following link is unclickable in IE, but fine on everything else (I've tried IE8 onwards): <a href="http://bbc.co.uk"><label>text</label></a> Whilst the above doesn't work, swapping the label for a div or a span is fine. Is there any sensible way to make this style of markup work in IE with minimal changes. I'd like to keep the label tag if at all possible. 回答1: Doesn't using a label inside an a tag invalidate the html

Use duplicate class name on an element?

戏子无情 提交于 2019-12-01 23:24:48
问题 I found that there are many frameworks will check the duplicate class name before adding the new class name on the element that i think will slow down the performance. Is there any problems while the element has duplicate class name? It will also apply the CSS class without conflict while the duplicate class name is in used. <div class="aa bb cc aa"></div> Is it OK to add a class name simply just like elem.className += ' ' + 'aa ee' , even the element has duplicate class name? 回答1: There is

New Rails project — Rails2 or Rails3?

别说谁变了你拦得住时间么 提交于 2019-12-01 20:35:42
问题 I have this new project I need to build. I want to have at least started on it by the end of this month. So which version should I use though? Should I just stick with the stable Rails2 or try to use Rails3 so I won't have to migrate later? Which one would you suggest for someone that is still learning Rails? 回答1: Rails 3 definitely won't have the resources available for it that Rails 2 does, and Rails 3 will still be changing quite fast, so unless you're especially happy getting your support

How to make git understand Mac (CR) line endings

痴心易碎 提交于 2019-12-01 20:23:57
For some reasons one of my files contains old style Mac line endings (after editing on OSX). These are "CR" (carriage return) characters and show up as ^M in git diff . Git does not understand that they are line ending codes (really how hard can it be?) and interprets the whole file as a single line. I know that I can convert the files to LF or CRLF endings and then commit them back, however since git automatically converts my Windows (CRLF) line endings to LF, I was hoping that it would take care of CR line endings as well. Is there a way to make git interpret CR as a line ending? TL;DR