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what happens when you type in a URL in browser [closed]
...porary intents and purposes, an unrealistic scenario; all of these are far more complex in actual use, and the tech stack has become an order of magnitude more complicated since this was written. With this in mind, the following timeline is still somewhat valid:
browser checks cache; if requested ...
How should I choose an authentication library for CodeIgniter? [closed]
..., Redux, SimpleLogin, SimpleLoginSecure, pc_user, Fresh Powered, and a few more. None of them were up to par, IMO, either they were lacking basic features, inherently INsecure, or too bloated for my taste.
Actually, I did a detailed roundup of all the authentication libraries for CodeIgniter when I ...
pass string parameter in an onclick function
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Split Strings into words with multiple word boundary delimiters
...egular expression '\w+' means "a word character (a-z etc.) repeated one or more times". There's a HOWTO on Python regular expressions here: amk.ca/python/howto/regex
– RichieHindle
Jul 4 '09 at 19:44
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How can I generate random alphanumeric strings?
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The following line is more memory (and thus time) efficient than the given one return new string(Enumerable.Range(1, length).Select(_ => chars[random.Next(chars.Length)]).ToArray());
– Tyson Williams
Nov 1...
SQLite UPSERT / UPDATE OR INSERT
...ll the other features, improvements and bug fixes that usually come with a more recent release.
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Is there a performance difference between i++ and ++i in C?
...ses through a toolchain that doesn't optimize it out your software will be more efficient. Considering it is just as easy to type ++i as it is to type i++, there is really no excuse to not be using ++i in the first place.
– monokrome
Jul 5 '12 at 17:45
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Checking for empty queryset in Django
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For a more detailed answer look at @leonid-shvechikov 's answer below: using .exists() is more efficient if the qs is not going to be evaluated.
– guival
May 25 '18 at 10:06
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PostgreSQL “DESCRIBE TABLE”
... this (in the psql command-line tool):
\d+ tablename
See the manual for more info.
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“for” vs “each” in Ruby
...small difference considering variable scoping).
Using each is considered more idiomatic use of Ruby.
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