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Is a statically-typed full Lisp variant possible?
...cheme code. See Typed Racket for a recent language that is a "Full Lisp" (more like Scheme, actually) with static typing.
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How big can a MySQL database get before performance starts to degrade
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The database size does matter. If you have more than one table with more than a million records, then performance starts indeed to degrade. The number of records does of course affect the performance: MySQL can be slow with large tables. If you hit one million records...
How to create a file with a given size in Linux?
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Oh, that might be more efficient than my approach because it does it all in one block. Good idea.
– Paul Tomblin
Sep 26 '08 at 13:02
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MongoDB SELECT COUNT GROUP BY
...noting here that $sortByCount is actually a "pseudo operator" like several more aggregation stage operators introduced from MongoDB 3.4. All they really do is expand into their respective aggregation stages. In this case a $group with $sum: 1 as shown in existing answers and an additional $sort sta...
How can I troubleshoot my Perl CGI script?
...ng the warnings pragma to all of your files:
use warnings;
If you need more information than the short warning message, use the diagnostics pragma to get more information, or look in the perldiag documentation:
use diagnostics;
Did you output a valid CGI header first?
The server is expectin...
Limit Decimal Places in Android EditText
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More elegant way would be using a regular expression ( regex ) as follows:
public class DecimalDigitsInputFilter implements InputFilter {
Pattern mPattern;
public DecimalDigitsInputFilter(int digitsBeforeZero,int digitsAft...
Setting action for back button in navigation controller
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How to copy to clipboard in Vim?
...commands like v3j"+y, and then you can paste them into another application more another VIM. Using * register under Linux can only copy and paste between different VIM applications.
– diabloneo
Sep 11 '13 at 11:17
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How to make a .jar out from an Android Studio project
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The 'Access-Control-Allow-Origin' header contains multiple values
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