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How to implement Enums in Ruby?
...to enhance readability without littering code with literal strings.
postal_code[:minnesota] = "MN"
postal_code[:new_york] = "NY"
Constants are appropriate when you have an underlying value that is important. Just declare a module to hold your constants and then declare the constants within that.
...
What is the relative performance difference of if/else versus switch statement in Java?
...view a switch statement as follows:
switch (<condition>) {
case c_0: ...
case c_1: ...
...
case c_n: ...
default: ...
}
where c_0, c_1, ..., and c_N are integral numbers that are targets of the switch statement, and <condition> must resolve to an integer expression.
I...
Zooming MKMapView to fit annotation pins?
...
- (void)showAnnotations:(NSArray *)annotations animated:(BOOL)animated NS_AVAILABLE(10_9, 7_0);
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How to pip or easy_install tkinter on Windows
...nter these two commands:
>>> import tkinter
>>> tkinter._test()
This should pop up a small window; the first line at the top of the window should say "This is Tcl/Tk version 8.5"; make sure it is not 8.4!
2) Uninstall 64-bit Python and install 32 bit Python.
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How do I have an enum bound combobox with custom string formatting for enum values?
...ethod:
public struct Described<T> where T : struct {
private T _value;
public Described(T value) {
_value = value;
}
public override string ToString() {
string text = _value.ToString();
object[] attr =
typeof(T).GetField(text)
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Python, Unicode, and the Windows console
...icode API as the win-unicode-console package mentioned below. print(unicode_string) should just work now.
I get a UnicodeEncodeError: 'charmap' codec can't encode character... error.
The error means that Unicode characters that you are trying to print can't be represented using the current...
Difference Between One-to-Many, Many-to-One and Many-to-Many?
...ate is the one side and City is the many side. There will be a column state_id in the table cities.
In unidirectional, Person class will have List<Skill> skills but
Skill will not have Person person. In bidirectional, both
properties are added and it allows you to access a Person given a
ski...
How to find out where a function is defined?
...d also do this in PHP itself:
$reflFunc = new ReflectionFunction('function_name');
print $reflFunc->getFileName() . ':' . $reflFunc->getStartLine();
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How to animate the change of image in an UIImageView?
...
Try this:
_imageView.image = image;
[_imageView.layer addAnimation:[CATransition animation] forKey:kCATransition];
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Reload an iframe with jQuery
...
This Jquery worked like a charm for me: $('#map_iframe').attr('src', $('#map_iframe').attr('src'));
– Topher Hunt
Jul 1 '14 at 19:00
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