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How does one capture a Mac's command key via JavaScript?
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EDIT: As of 2019, e.metaKey is supported on all major browsers as per the MDN.
Note that on Windows, although the ⊞ Windows key is considered to be the "meta" key, it is not going to be captured by browsers as such.
This is only for the command key on MacOS/keyboar...
Using wget to recursively fetch a directory with arbitrary files in it
... --cut-dirs=X (cuts out X directories). it's a bit annoying to have to manually count directories for X..
– lkraav
Nov 8 '10 at 21:49
3
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How to randomly pick an element from an array
... history. If it haven't, it's extremely predictable. It's not a problem at all in this case — but it should be mentioned that array[(int)(System.currentTimeMillis() % array.length)] is just as good as the proposed solution.
– alf
Nov 9 '11 at 13:42
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Get the size of the screen, current web page and browser window
... screenHeight , pageX , pageY , screenX , screenY which will work in all major browsers?
19 Answers
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Check if UIColor is dark or bright?
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This extension works with greyscale colors. However, if you are creating all your colors with the RGB initializer and not using the built in colors such as UIColor.black and UIColor.white, then possibly you can remove the additional checks.
extension UIColor {
// Check if the color is light ...
How to center canvas in html5
..., let me add a little bit more details.
The above properties will horizontally center the canvas, div or whatever other node you have relative to it's parent. There is no need to change the top or bottom margins and paddings. You specify a width and let the browser fill the remaining space with the...
Generator Expressions vs. List Comprehension
...or slicing
print [5,6] + gen() # generators can't be added to lists
Basically, use a generator expression if all you're doing is iterating once. If you want to store and use the generated results, then you're probably better off with a list comprehension.
Since performance is the most common rea...
Ruby on Rails vs ASP.NET MVC 3 for a .NET Guy? [closed]
... I used a great book to learn a while back, and it would be right up your alley: Rails for .Net Developers
Also, I wrote a post about going from MVC to RoR a while back as well.
As for comparisons, they both have strengths as has been covered, but here are a few that stick out to me:
I reall...
How can I parse a local JSON file from assets folder into a ListView?
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As Faizan describes in their answer here:
First of all read the Json File from your assests file using below code.
and then you can simply read this string return by this function as
public String loadJSONFromAsset() {
String json = null;
try {
InputStream ...
What are Java command line options to set to allow JVM to be remotely debugged?
...ave this article bookmarked on setting this up for Java 5 and below.
Basically run it with:
-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1044
For Java 5 and above, run it with:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=1044
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