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Media Queries: How to target desktop, tablet, and mobile?
...always starting CSS and all markup with mobile-first (it's harder to scale down and focussing on the mobile means your design and content is pared down to the essentials, which you can expand as the sizes increase), one just above 400px wide (or 'above mobile size'), then two desktop-sizes, one extr...
What's the most appropriate HTTP status code for an “item not found” error page
...uccessfully
processed the request, but is not going to return any content
https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/204
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load and execute order of scripts
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A great summary by @addyosmani
Shamelessly copied from https://addyosmani.com/blog/script-priorities/
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Smallest data URI image possible for a transparent image
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This guy breaks down the problem via the GIF spec. His solution for the transparent.gif would be 37 bytes:
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
He goes even smaller by first removing the transparency, t...
What is the optimal algorithm for the game 2048?
...s within reach!
You can try the AI for yourself. The code is available at https://github.com/nneonneo/2048-ai.
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How do you round a floating point number in Perl?
...unded positive integer only based on the decimals. int($_) basically round-down the number so ($-int($)) captures the decimals. If the decimals are (by definition) strictly less than 0.5, round-down the number. If not, round-up by adding 1.
What is a NullPointerException, and how do I fix it?
...e following is 2 minutes read to understand this amazing language feature.
https://jfeatures.com/blog/NullPointerException
In java 14 following is sample NullPointerException Exception message:
in thread "main" java.lang.NullPointerException: Cannot invoke "java.util.List.size()" because "list" is ...
UIRefreshControl without UITableViewController
...ull circle instead of the incrementing circle based on how far you pull it down. Is there a fix?
– david2391
Nov 30 '13 at 2:09
30
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Difference between TCP and UDP?
...ongestion control. It responses to the network load. Unlike UDP, it slows down when network congestion is imminent. So, applications like multimedia preferring constant throughput might go for UDP.
Besides, UDP is unreliable, it doesn't react on packet losses. So loss sensitive applications like ...
Error in finding last used cell in Excel with VBA
... which are highly unreliable and hence should never be used.
UsedRange
xlDown
CountA
UsedRange should NEVER be used to find the last cell which has data. It is highly unreliable. Try this experiment.
Type something in cell A5. Now when you calculate the last row with any of the methods given be...