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Writing a compiler in its own language
...r your language in some other language (usually Java or C). Once that is done, you can write a new version of the compiler in language Foo. You use the first bootstrap compiler to compile the compiler, and then use this compiled compiler to compile everything else (including future versions of its...
What makes a SQL statement sargable?
...r(myDate) = 2008
The SQL optimizer can't use an index on myDate, even if one exists. It will literally have to evaluate this function for every row of the table. Much better to use:
WHERE myDate >= '01-01-2008' AND myDate < '01-01-2009'
Some other examples:
Bad: Select ... WHERE isNull(F...
How should I use git diff for long lines?
..., thanks, that prevents all the unwanted content appearing, so the newline ones must have been colour related also.
– Peter Boughton
Oct 1 '08 at 18:13
add a comment
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How to insert in XSLT
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We ran into a situation recently where in just one of many XSL stopped working with this technique, and started showing a strange character. However, if I use WaterSoul's CDATA technique it works.
– user4903
Feb 10 '12 at 22:36
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How to lay out Views in RelativeLayout programmatically?
...ing the rules of the other childview made things work. Hope this helps someone
– 2cupsOfTech
Aug 26 '15 at 16:46
In ca...
Remove All Event Listeners of Specific Type
...can do is to remove all listeners by cloning the element, which will not clone the listeners collection.
Note: This will also remove listeners on element's children.
var el = document.getElementById('el-id'),
elClone = el.cloneNode(true);
el.parentNode.replaceChild(elClone, el);
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Unzip files programmatically in .net
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Free, and no external DLL files. Everything is in one CS file. One download is just the CS file, another download is a very easy to understand example. Just tried it today and I can't believe how simple the setup was. It worked on first try, no errors, no nothing.
https:...
How to emulate GPS location in the Android Emulator?
...ealistic lat/lng: http://itouchmap.com/latlong.html
If you need more then one coordinate you can use a kml file with a route as well it is a little bit described in this article. I can't find a better source at the moment.
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Can I use break to exit multiple nested 'for' loops?
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I'm a new C++ programmer (and one without any formal programming training) thus after reading about people's rants on goto. I'm hesitant on using it in fear my program might just suddenly explode and kill me. Other than that, when i used to write programs...
Can grep show only words that match search pattern?
...ixing of file names on output. This is the default
when there is only one file (or only standard input) to search.
-o, --only-matching
Print only the matched (non-empty) parts of a matching line,
with each such part on a separate output line.
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