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Getting a map() to return a list in Python 3.x
...))
In Python 3+, many processes that iterate over iterables return iterators themselves. In most cases, this ends up saving memory, and should make things go faster.
If all you're going to do is iterate over this list eventually, there's no need to even convert it to a list, because you can s...
Find in Files: Search all code in Team Foundation Server
Is there a way to search the latest version of every file in TFS for a specific string or regex? This is probably the only thing I miss from Visual Source Safe...
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A fast method to round a double to a 32-bit int explained
...aking the lowest 32 bits of mantissa.
Now, to the magic number; as you correctly stated, 6755399441055744 is 2^51 + 2^52; adding such a number forces the double to go into the "sweet range" between 2^52 and 2^53, which, as explained by Wikipedia here, has an interesting property:
Between 252=...
jQuery Validate - Enable validation for hidden fields
...of jQuery validation plugin 1.9 by default validation of hidden fields ignored . I'm using CKEditor for textarea input field and it hides the field and replace it with iframe. The field is there, but validation disabled for hidden fields. With validation plugin version 1.8.1 everything works as exp...
Suppress/ print without b' prefix for bytes in Python 3
Just posting this so I can search for it later, as it always seems to stump me:
4 Answers
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Error handling in C code
What do you consider "best practice" when it comes to error handling errors in a consistent way in a C library.
22 Answers
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Double Negation in C++
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However, it's pointless in C++ or modern C, or where the result is only used in a boolean expression (as in the question). It was useful back when we had no bool type, to help avoid storing values other than 1 and 0 in boolean variables.
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psycopg2: insert multiple rows with one query
...thod:
args_str = ','.join(cur.mogrify("(%s,%s,%s,%s,%s,%s,%s,%s,%s)", x) for x in tup)
cur.execute("INSERT INTO table VALUES " + args_str)
and 2 minutes when using this method:
cur.executemany("INSERT INTO table VALUES(%s,%s,%s,%s,%s,%s,%s,%s,%s)", tup)
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How do I access named capturing groups in a .NET Regex?
...on of the Match object, indexing it with the capturing group name, e.g.
foreach (Match m in mc){
MessageBox.Show(m.Groups["link"].Value);
}
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How to prevent multiple instances of an Activity when it is launched with different Intents
...ication when it is launched using the "Open" button on the Google Play Store app (previously called Android Market). It seems that launching it from the Play Store uses a different Intent than launching it from the phone's application menu of icons. This is leading to multiple copies of the same...