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Using logging in multiple modules
...
And in your main module :
#main
import logging
# load my module - this now configures the logger
import my_module
# This will now disable the logger in my module by default, [see the docs][1]
logging.config.fileConfig('logging.ini')
my_module.foo()
bar = my_module.Bar()
bar.bar()
Now the lo...
Static Initialization Blocks
...ould be executed once per constructed instance rather than once in total.
Now in this particular case, you could use a static method instead:
public class Foo {
private static final int widgets = getWidgets();
static int getWidgets() {
int first = Widgets.getFirstCount();
...
Convert an image to grayscale in HTML/CSS
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Support for CSS filters has landed in Webkit. So we now have a cross-browser solution.
img {
filter: gray; /* IE6-9 */
-webkit-filter: grayscale(1); /* Google Chrome, Safari 6+ & Opera 15+ */
filter: grayscale(1); /* Microsoft Edge and Firefox 35+ */
}
/*...
How to pass an object into a state using UI-router?
... here for convenience:
christopherthielen: Yes, this should be working now in 0.2.13.
.state('foo', { url: '/foo/:param1?param2', params: { param3:
null } // null is the default value });
$state.go('foo', { param1: 'bar', param2: 'baz', param3: { id: 35,
name: 'what' } });
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What is the { get; set; } syntax in C#?
...aid, I'm a beginner so I can't tell you exactly why
//it's there but I do know it's essential)
Now that we've created the instances of the Genre class we can set the genre names using the 'Name' property that was set way up above.
public string Name //Again, this is the 'Name' property
{ get; set...
Sound effects in JavaScript / HTML5
I'm using HTML5 to program games; the obstacle I've run into now is how to play sound effects.
18 Answers
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What reason is there to use null instead of undefined in JavaScript?
I've been writing JavaScript for quite a long time now, and I have never had a reason to use null . It seems that undefined is always preferable and serves the same purpose programmatically. What are some practical reasons to use null instead of undefined ?
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Is there an equivalent of 'which' on the Windows command line?
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@mawg, the original was for where you know the extension since it mirrors which under UNIX (where that extension-adding trickery doesn't occur). I've now added one which can do what you wish but it's no longer a simple command so much as a script. It first tries t...
What is the smallest possible valid PDF?
...iler<</Size 4/Root 1 0 R>>
Acrobat complains, but opens it. Now we're at 178 bytes.
Turns out that you don't need that /Size in the trailer. Now we're at 172:
%PDF-1.0
1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj 2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj...
Algorithm to detect intersection of two rectangles?
...nt.x - v(n-1).x) +
rotated.y * (testpoint.y - v(n-1).y);
Now test all points of rectangle A against the edges of rectangle B and vice versa. If you find a separating edge the objects don't intersect (providing all other points in B are on the other side of the edge being tested for...