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Pointers vs. values in parameters and return values
...ices, you don't need to pass a pointer to change elements of the array. io.Reader.Read(p []byte) changes the bytes of p, for instance. It's arguably a special case of "treat little structs like values," since internally you're passing around a little structure called a slice header (see Russ Cox (rs...
Why is processing a sorted array faster than processing an unsorted array?
...no recognizable patterns, branch predictors are virtually useless.
Further reading: "Branch predictor" article on Wikipedia.
As hinted from above, the culprit is this if-statement:
if (data[c] >= 128)
sum += data[c];
Notice that the data is evenly distributed between 0 and 255. When the dat...
Find the host name and port using PSQL commands
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@s.k Read the context. The OP didn't know the host and port for their postgres database. They can connect with a basic psql command, so that implies localhost:5432. Unless someone got clever with env vars/aliases/etc. I don't love...
Catch multiple exceptions at once?
...t place. The #1 accepted answer is almost twice as many lines and far less readable.
– João Bragança
Sep 4 '12 at 21:57
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When is assembly faster than C?
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@slacker Actually, the code here is quite readable: the inline code does one unique operation, which is immediately understable reading the method signature. The code lost only slowly in readibility when an obscure instruction is used. What matters here is we have a...
Execute bash script from URL
...s http://server/path/script.sh | bash -s arg1 arg2
Flag "-s" makes shell read from stdin.
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How can I add a vertical scrollbar to my div automatically?
...y 100px, use max-height instead of height property.
For more information, read this MDN article.
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Regular expression for matching HH:MM time format
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@SergO please read his answer more carefully. His answer is for both a leading zero and without.
– Alexander
Feb 5 '14 at 21:02
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What is a CSRF token ? What is its importance and how does it work?
...e of that to Wikipedia.
(Your mileage may vary.)
EDIT from comment worth reading:
It would be worthy to note that script from www.cute-cat-pictures.org normally does not have access to your anti-CSRF token from www.mybank.com because of HTTP access control. This note is important for some people ...
Have Grunt generate index.html for different setups
...ally use, and enjoy using, this technique for my builds, I ask that future readers take the time to read the other answers given and to research all the options. If you find a better solution, please post your answer here.
Feb 2014 update:
I'm not sure if it will be of any help to anyone, but I've...