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I am currently looking around for a javascript example that can demonstrate the incompatibility or behavior issues in different browsers.
I have tried everything suggested here: Click here without luck.
Can anyone give me an example on this please. It is for teaching purposes.
Thanks in advance
P/S: The example should be applicable for all of the current modern browser (the latest version)
Try going to http://caniuse.com/. Different browsers will implement the latest features at different speeds and hence you can showcase the incompatibilities this way.
e.g.
(()=>console.log('hello'))();
works in chrome but not in IE11
var text = new Text('Oh, how quick that fox was!');
Works in chrome, but not IE.
There's a large list of incompatibilities at http://quirksmode.org/compatibility.html
Test page for the above constructor at http://quirksmode.org/dom/core/createElements.html
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I have been trying to find some version of the native code (C/C++) for javascript arrays to see how their methods are implemented, but I have been having trouble sifting through the vast number of files. I have looked through the v8 engine open source (https://github.com/v8/v8/tree/master/src) and the mozilla open source (https://dxr.mozilla.org/mozilla-central/source/). I'm sure these sources have a strong structure to them, but I can seem to break it and find what I'm looking for.
Does anyone have a link/tutorial/advice on how to find the native code for arrays? And, more generally, a link/tutorial/advice on how to maneuver through one of the javascript native code databases?
Edit: Maybe I'm assuming that the source code is too simplistic, but I think I'm looking for something that looks something like this: http://www.docjar.com/html/api/java/util/Arrays.java.html, but in C/C++ for javascript
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Learning to write firefox addons I would like to improve the coding style and avoid bad coding practices.
I'm using the mozilla addon-sdk-1.14 and I am looking for the reference of an open source firefox addon, which code is accessible (for example on github), so that I can get inspiration and an idea of how it "should" look like in the "real world".
Thanks!
All extensions have their code available for you to look at. You just:
download the xpi,
change the xpi extension to zip,
extract and see the code inside.
To download the xpi, see this answer for some instructions.
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I have a webpage which renders LaTeX formula using javascript. I wish to take a screenshot of it programmatically after running the scripts. Is this possible?
There is a cross platform, HTML5 solution, works with latest browsers only http://html2canvas.hertzen.com/
The script should work fine on the following browsers:
Firefox 3.5+
Google Chrome Newer versions of Opera
IE9 (Older versions compatible with the use of flashcanvas)
Demo: http://html2canvas.hertzen.com/screenshots.html
You can use webkit2png and apply the delay option to wait for JS to finish rendering the formulae before taking the screenshot.
You can use a headless browser like PhantomJS to render LaTeX / MathJax.
Related How can I force PhantomJS to wait until MathJax is finished?
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Where can I get a list of browser differences in the implementation of DOM?
check out http://quirksmode.org/
Its been a great help to me.
It also has a wealth of classy javascript tutorials.
cheers, jrh
Okay it's only for Gecko but for Gecko specific references take a look at
http://developer.mozilla.org/en/gecko_dom_reference
i second quirksmode.org. i find it most useful via a google site search.
for example, suppose you want to see the different implementations of events
site:quirksmodes.org events
or if you want to know one browser's counterpart in a different browser, just try the one you know
site:quirksmode.org relatedtarget
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I've used jTip (jQuery plugin) and overLIB in the past. Are there any others I should be looking into...any accepted "best" one?
see this post Recommendations for jQuery tooltips
Remember, sometimes, a simple <acronym title="long description">text</acronym> is a good way to deal with that issue.
(Good) Browsers are displaying acronyms underlined and show the title attribute in a tooltip on mouse over.
You'll need some small CSS extra-rules to make it work on IE (at least on IE 6).
However, according to that tag name and W3, <acronym> should only be used for acronyms (obviously!).
Note : You've also have the <abbr> tag with same behavior.