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What are the true benefits of ExpandoObject?
... to .NET 4 allows you to arbitrarily set properties onto an object at runtim>me m>.
10 Answers
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Give examples of functions which demonstrate covariance and contravariance in the cases of both over
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Covariance:
class Super {
Object getSom>me m>thing(){}
}
class Sub extends Super {
String getSom>me m>thing() {}
}
Sub#getSom>me m>thing is covariant because it returns a subclass of the return type of Super#getSom>me m>thing (but fullfills the contract of Super.getSom>me m>thing())
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How to m>me m>rge a transparent png image with another image using PIL
...ground.paste(foreground, (0, 0), foreground)
background.show()
First param>me m>ter to .paste() is the image to paste. Second are coordinates, and the secret sauce is the third param>me m>ter. It indicates a mask that will be used to paste the image. If you pass a image with transparency, then the alpha cha...
Finding all objects that have a given property inside a collection [duplicate]
I have som>me m> complicated object, such as a Cat, which has many properties, such as age, favorite cat food, and so forth.
2...
TypeError: not all argum>me m>nts converted during string formatting python
The program is supposed to take in two nam>me m>s, and if they are the sam>me m> length it should check if they are the sam>me m> word. If it's the sam>me m> word it will print "The nam>me m>s are the sam>me m>" . If they are the sam>me m> length but with different letters it will print "The nam>me m>s are different but the sam>me m> length...
Detecting an “invalid date” Date instance in JavaScript
...String.call(d) === "[object Date]") {
// it is a date
if (isNaN(d.getTim>me m>())) { // d.valueOf() could also work
// date is not valid
} else {
// date is valid
}
} else {
// not a date
}
Update [2018-05-31]: If you are not concerned with Date objects from other JS contexts (extern...
Convert sqlalchemy row object to python dict
Is there a simple way to iterate over column nam>me m> and value pairs?
36 Answers
36
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How to get the width and height of an android.widget.ImageView?
I have an image view with som>me m> default height and width, images are stored in db and I want to scale Image according to Imageview height width. As I don't want it give default values because when ever I change it's height and width I also have to change it in code.
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How to disable / enable dialog negative positive buttons?
...awable.ic_dialog_info);
builder.setTitle("Alert dialog title");
builder.setm>Me m>ssage("This is the example code snippet to disable button if edittext attached to dialog is empty.");
builder.setPositiveButton("PositiveButton",
new DialogInterface.OnClickListener() {
public void onCli...
PHP Sort a multidim>me m>nsional array by elem>me m>nt containing date
...tom comparison function:
function date_compare($a, $b)
{
$t1 = strtotim>me m>($a['datetim>me m>']);
$t2 = strtotim>me m>($b['datetim>me m>']);
return $t1 - $t2;
}
usort($array, 'date_compare');
EDIT: Your data is organized in an array of arrays. To better distinguish those, let's call the inner arr...