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HTML5 textarea placeholder not appearing
...not appear. It seems as though it may be covered up with some blank spaces and tabs. When you focus on the text area and delete from where the cursor puts itself, then leave the text area, the proper placeholder then appears.
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How does the @property decorator work in Python?
I would like to understand how the built-in function property works. What confuses me is that property can also be used as a decorator, but it only takes arguments when used as a built-in function and not when used as a decorator.
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How can I display an RTSP video stream in a web page?
...deo stream from an IP camera on a web page because you need wide internet bandwidth and a great video player that is compatible with the major browsers.
But fortunately there are some cloud based services that can do this job for us. One of the best is IPCamLive. This service can receive RTSP/H264 ...
How to change progress bar's progress color in Android
I'm using an horizontal progress bar in my Android application, and I want to change its progress color (which is Yellow by default). How can I do it using code (not XML)?
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Function in JavaScript that can be called only once
...y once, in each time after the first it won't be executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this?
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Timer & TimerTask versus Thread + sleep in Java
...k is that it expresses your intention much better (i.e. code readability), and it already has the cancel() feature implemented.
Note that it can be written in a shorter form as well as your own example:
Timer uploadCheckerTimer = new Timer(true);
uploadCheckerTimer.scheduleAtFixedRate(
new Tim...
How often should you use git-gc?
... on how much the repository is used. With one user checking in once a day and a branch/merge/etc operation once a week you probably don't need to run it more than once a year.
With several dozen developers working on several dozen projects each checking in 2-3 times a day, you might want to run it...
Using try vs if in python
...er LBYL style ("look before you leap"). To me, it's a matter of efficiency and readability.
In your example (say that instead of returning a list or an empty string, the function were to return a list or None), if you expect that 99 % of the time result will actually contain something iterable, I'd...
Declaring Multiple Variables in JavaScript
...ion is a single statement on a single line, so you can easily add, remove, and reorder the declarations.
With the second way, it is annoying to remove the first or last declaration because they start from the var keyword and finish with the semicolon respectively. Every time you add a new declaratio...
How to play audio?
I am making a game with HTML5 and JavaScript.
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