How to get browser release date? [closed] - javascript

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In my project I have a problem. I have to implement a date (exactly only the year), when the browser, in which user opens my website, was released (I mean its current version).
For example if some user opens my website in the last version of
Google Chrome 31.0.1650.57, released november 14, 2013, it should show
him, that his browser released in 2013. If user opens my website in IE
8 (bad dream of all website programmers), it should show him 2009.
Can I get it in any programming language for the web? Please help!
Update: I know one method. I get the browser and the version and then I compare it with table of all browsers, their versions and their release dates of each version (exactly years). But it is really time-consuming and heavy on the size of my websites challenge :/

Marc B is correct. You will have to compile your own list.
A library that will help with this task is conditionizr. It's a cousin of Modernizr that is used for user-agent based tests.
http://conditionizr.com/

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Plugin that detects images in a webpage like Imgur [closed]

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Closed 8 years ago.
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I am trying to make a cross-browser plugin that detects images from a webpage like imgur and pinterest. I have been looking at crossrider...is that a good option? the API is tricky to understand. If anyone has experience with something like this or can give me a good starting point, i would really appreciate it.
In general, the Crossrider framework supports cross browser extension development and provides APIs and plugins to make it easier, but at the end of the day it's up to you to evaluate the framework and see whether it meets your needs. The tutorial you quoted relates to creating a bookmarklet extension and does not pertain to images.
For your specific requirement, there is an images plugin (see the Plugins page) that facilitates working with images on a page.
As #Lix correctly mentions, this is not the place to ask such general questions and hence I recommend that you start by reading the Crossrider docs and searching the forum. If you have any further general questions, email them to support#crossrider.com.
Of course, if you have any specific code related questions, Stack Overflow is another great place to get answers ;-)
[Disclosure: I am a Crossrider employee]

Javascript performance improvement in browsers over years [closed]

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i'm a teacher in cartography and i'm preparing a course about client-side webmapping with JS apis and libs.
I searched the web for sources about browsers improvement in javascript performance, but i can't find recent data.
Any ideas ? Thanks !
If you're looking for up to date data, you can give jsPerf a go.
http://jsperf.com/
They use a service called BrowserScope, http://code.google.com/p/browserscope/. From their home page, http://www.browserscope.org/:
Browserscope is a community-driven project for profiling web browsers.
They have a history of JavaScript performance in various browsers and is updated frequently.
If you're interested in getting performance throughout the ages of JavaScript you can also run it yourself in Virtual Machines across various browsers.

Checking the Appearance of Website on different browsers [closed]

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i am learning Web Designing .i have to check the appearance of website at different time in different browsers.there are some paid software tools exist like http://crossbrowsertesting.com/ and browserstack.com but they are paid .How to check compatibility with different browsers (mainly old browsers.).what is the most convenient way for this and any free software in which we can check ??
this is not 100% answer to your question but check out this website: http://caniuse.com/ - there you can see, which html5+css3 elements you can use. Might be helpful when developing or planning or whatever :-)
Since you'll need to check on all main browsers (Chrome, Firefox, Safari, and Explorer), plus old and current versions of each I recommend using Old Apps which allows you to download old, outdated versions of all main browsers. Since many people don't update their browsers when they should, this is the best way to simulate viewing your web pages as they would.
For a more complicated way of viewing true Internet Explorer 6 & 7, I would suggest installing a virtual machine on your PC. If you're on a Mac, set up Bootcamp, boot into Windows, then install a virtual machine in that. Obviously it's best to have a true Mac and true PC, but this will do in a pinch.
First and foremost, check out Old Apps. It should be the browsers you're looking for.

Is it possible to open a URL after user sent to update browser? [closed]

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Closed 9 years ago.
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I want to develop a new HTML5 / CSS3 webApp, and i need the users to have certain browsers compatible with specific CSS3 properties.
i wish to send users that have old browser versions to update them and after they update to reopen the Link to my webApp Automatically.
is there a way to do it?
Best for Internet Explorer, Firefox, Chrome...
Thanks,
IDan
You can use modernizr to check if required HTML5/CSS3 features are enabled in the browser, if not display a disclaimer in your site to ask your user to upgrade (but the upgrade process must be done from your user, you can't force anything).
You can download custom version of Modernizr for the features you want to detect.
Docs: http://modernizr.com/docs/
Download: http://modernizr.com/download/

Render a webpage (includes some javascripts) in Python [closed]

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Closed 9 years ago.
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I'm new in programming with Python. I just want to create a little webcrawler.
I already created my idea in C# but my Raspberry Pi doesn't support the Mono project in the right way (There is a long theard about a special problem, which is still not solved and this for about a year now). Because of this I need to code it in Python. I want a simple application which opens a website, waits some seconds till the JavaScript changes some stuff on the website (some simple links) then it needs to find a specific link by his id. When it finds the link, it needs to visit / click the link so that I can see the source code of the new website for other works later. Perhaps you guys could help me out with some links? I already searched by my self but I couldn't find anything what could help me directly.
Thank you all!
You need Selenium with Python.

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