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Check if checkbox is checked with jQuery
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IDs must be unique in your document, meaning that you shouldn't do this:
<input type="checkbox" name="chk[]" id="chk[]" value="Apples" />
<input type="checkbox" name="chk[]" id="chk[]" value="Bananas" />
Instead, drop the ID, and then select them ...
Difference between JSONObject and JSONArray
...[].
**Tip to remember** : Here, order of element is important. That means you have
to go straight like the shape of the bracket i.e. straight lines.
(Note :It is just my logic to remember the shape of both.)
5. Order of elements is important. Example: ["Ford","BMW","Fiat"] is not ...
Storyboard - refer to ViewController in AppDelegate
...ze scenes from the AppDelegate you're most likely doing something wrong. I mean imagine you, for some reason, want to send data to a view controller way down the stack, the AppDelegate shouldn't be reaching way into the view controller stack to set data. That's not its business. It's business is the...
Python `if x is not None` or `if not x is None`?
...comment is correct. (At least, I wasn't able to prove it otherwise.)
This means if x is not None has the exact result as if not x is None. I stand corrected. Thanks bukzor.
However, my answer still stands: Use the conventional if x is not None. :]
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#define macro for debug printing in C?
...for the debugging trace statements unless debug is enabled. Basically, it means that all of your code is checked by the compiler every time you compile - whether for release or debugging. This is a good thing!
debug.h - version 1.2 (1990-05-01)
/*
@(#)File: $RCSfile: debug.h,v $
@(#)V...
How many Activities vs Fragments?
...ou do not end up with a Tablet Activity containing lots of logic, and that means that you save memory. The tutorial pattern can lead to a very big main activity in a more complex app; since it needs to handle the logic of all the fragments that get placed in it at any time.
Overall, do not think of...
Biggest GWT Pitfalls? [closed]
... longer an issue, because you use the new 'Development Mode'. It basically means you can run code directly in your browser of choice, so no loss of speed, plus you can firebug/inspect it, etc.
http://code.google.com/p/google-web-toolkit/wiki/UsingOOPHM
Problem: GWT code is java, and has a differ...
Should I put the Google Analytics JS in the or at the end of ?
...ing they made a mistake coming there in the first place. Even when they do mean to be there, I don't want to make them wait an extra millisecond to see my content.
– Melinda Green
Oct 28 '15 at 20:06
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Eclipse: Referencing log4j.dtd in log4j.xml
...ne less thing to worry about).
The down side though, is that I believe it means you'll need an Internet connection (at least at some point during development, even if it's just one time).
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Does MongoDB's $in clause guarantee order
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@lboyel I didn't mean it to be that clever :-), but that worked because it was using Mongoose's Document#equals to compare against the doc's _id field. Updated to make the _id comparison explicit. Thanks for asking.
– Jo...