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What is the difference between visibility:hidden and display:none?
...display:none means that the tag in question will not appear on the page at all (although you can still interact with it through the dom). There will be no space allocated for it between the other tags.
visibility:hidden means that unlike display:none, the tag is not visible, but space is allocat...
Can you use a trailing comma in a JSON object?
When manually generating a JSON object or array, it's often easier to leave a trailing comma on the last item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode):
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Where does Xcode 4 store Scheme Data?
... use Xcode 4, and I'm trying to find the file in a project where it stores all of a project's Schemes. I figured they would be stored in a file in the xcodeproj directory somewhere, but for the life of me I can't find which one.
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Smallest data URI image possible for a transparent image
... Why is the shorter one "unstable"? I see that it does occasionally cause a black image, I'm just curious if anyone knows why.
– jvenema
Dec 9 '15 at 18:05
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Is there a way to loop through a table variable in TSQL without using a cursor?
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First of all you should be absolutely sure you need to iterate through each row — set based operations will perform faster in every case I can think of and will normally use simpler code.
Depending on your data it may be possible t...
favicon.png vs favicon.ico - why should I use PNG instead of ICO?
...updates and notes from various others in this thread:
ICOs and PNGs both allow full alpha channel based transparency
ICO allows for backwards compatibility to older browsers (e.g. IE6)
PNG probably has broader tooling support for transparency, but you can find tools to create alpha-channel ICOs as...
Why does i = i + i give me 0?
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230 + 230 = -231
-231 + -231 = 0
...in int arithmetic, since it's essentially arithmetic mod 2^32.
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android View not attached to window manager
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After a fight with this issue, I finally end up with this workaround:
/**
* Dismiss {@link ProgressDialog} with check for nullability and SDK version
*
* @param dialog instance of {@link ProgressDialog} to dismiss
*/
public void dismissProgressDialog(Progr...
Adding images or videos to iPhone Simulator
...n.JPG. You will then need to reset your simulator (Hardware->Reboot) to allow it to notice the new changes. It doesn't matter if they are not JPEGs - they can both be PNGs, but it appears that both of them must be present for it to work. You may need to create DCIM if it doesn't already exist, an...
How can I make a Python script standalone executable to run without ANY dependency?
...'m building a Python application and don't want to force my clients to install Python and modules.
19 Answers
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