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In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
...ntime exceptions, I am not forced to by the compiler, but can write a unit test that makes me deal with it. Since I still believe that the earlier a bug is caught the cheaper it is to fix it, I prefer CheckedExceptions for this reason.
From a philosophical point of view, a method call is a contrac...
Detect if a jQuery UI dialog box is open
...
How would you do this test for any and all dialogs? Say you have ten different dialogs with separate inits and options and you want to test if ANY of them are open, not a specific selector?
– Kirk Ross
Nov 12...
How to convert int to NSString?
...
Primitives can be converted to objects with @() expression. So the shortest way is to transform int to NSNumber and pick up string representation with stringValue method:
NSString *strValue = [@(myInt) stringValue];
or
NSString *strValue = @(myInt).stringValue;
...
How to get element by class name? [duplicate]
...entsByClassName
suppose you have some elements and applied a class name 'test', so, you can get elements like as following
var tests = document.getElementsByClassName('test');
its returns an instance NodeList, or its superset: HTMLCollection (FF).
Read more
...
What are good uses for Python3's “Function Annotations”
...used for pre-condition checking:
def validate(func, locals):
for var, test in func.__annotations__.items():
value = locals[var]
msg = 'Var: {0}\tValue: {1}\tTest: {2.__name__}'.format(var, value, test)
assert test(value), msg
def is_int(x):
return isinstance(x, int...
How to access object attribute given string corresponding to name of that attribute
...
and hasattr for testing whether or not an object has a specific attr though in that case using the three argument form getattr(object, attrname, default) is often better.
– Duncan
Apr 10 '10 at 11:20
...
RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
...tionality you require. Have a look at http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/CreatingAliasRRSets.html
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Disable assertions in Python
...
Call Python with the -O flag:
test.py:
assert(False)
print 'Done'
Output:
C:\temp\py>C:\Python26\python.exe test.py
Traceback (most recent call last):
File "test.py", line 1, in <module>
assert(False)
AssertionError
C:\temp\py>C:\Py...
C# How can I check if a URL exists/is valid?
...this before!; changed to wiki to avoid accusations of rep-garnering. So to test a URL without the cost of downloading the content:
// using MyClient from linked post
using(var client = new MyClient()) {
client.HeadOnly = true;
// fine, no content downloaded
string s1 = client.DownloadSt...
How do I import other TypeScript files?
...dule loading you have to do the following:
moo.ts
export class foo {
test: number;
}
app.ts
import moo = module('moo');
class bar extends moo.foo {
test2: number;
}
Note the different way of brining the code into scope. With external modules, you have to use module with the name of the...