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Guards vs. if-then-else vs. cases in Haskell
...ou're probably doing something right.
if..then..else is for when you have one binary condition, or one single decision you need to make. Nested if..then..else-expressions are very uncommon in Haskell, and guards should almost always be used instead.
let absOfN =
if n < 0 -- Single binary expr...
ASP.NET MVC 3: Override “name” attribute with TextBoxFor
...
Yeah they hid that one nicely didn't they :)
– James McCormack
May 19 '11 at 12:08
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Multiprocessing: How to use Pool.map on a function defined in a class?
... This has worked very well for me, thank you. I have found one weakness: I tried using parmap on some functions that passed around a defaultdict and got the PicklingError again. I did not figure out a solution to this, I just reworked my code to not use the defaultdict.
...
Multiple inheritance for an anonymous class
...x = new SomeClass() {
...
};
What you can't do is implement more than one interface. You need a named class to do that. Neither an anonymous inner class, nor a named class, however, can extend more than one class.
share...
Unfortunately MyApp has stopped. How can I solve this?
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Filtering logcat in Eclipse can be done by typing in the java package name in the application name field of the filter.
– Stephane
Mar 21 '15 at 12:38
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jQuery table sort
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By far, the easiest one I've used is: http://datatables.net/
Amazingly simple...just make sure if you go the DOM replacement route (IE, building a table and letting DataTables reformat it) then make sure to format your table with <thead>...
Random / noise functions for GLSL
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For very simple pseudorandom-looking stuff, I use this oneliner that I found on the internet somewhere:
float rand(vec2 co){
return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453);
}
You can also generate a noise texture using whatever PRNG you like, then upload ...
SQL Server Output Clause into a scalar variable
...ssign a variable you also need to be sure of that the insert only inserted one row. And if the insert only inserted one row, perhaps it is easier to get hold of what is used in the values clause directly instead of using output?
– Mikael Eriksson
Apr 5 '11 at 2...
Obfuscated C Code Contest 2006. Please explain sykes2.c
...t;
putchar(32 | (b & 1));
}
}
}
This outputs one character per iteration. Every 64th character, it outputs a newline. Otherwise, it uses a pair of data tables to figure out what to output, and puts either character 32 (a space) or character 33 (a !). The first table ("&...
Draw in Canvas by finger, Android
...et();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
touch_start(x, y);
...