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Check for null in foreach loop
...calls, unnecessary GetEnumerator(), MoveNext(), Dispose() on the iterator, etc).
An if test is simple, obvious, and efficient.
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How to check if activity is in foreground or in visible background?
..., but if
your activity is already extended from MapActivity/ListActivity etc.
you still need to write the following by hand):
@Override
protected void onResume() {
super.onResume();
MyApplication.activityResumed();
}
@Override
protected void onPause() {
super.onPause();
MyApplication....
Handling Dialogs in WPF with MVVM
...his control in terms of how to show it, and retrieve dialog result from it etc. Especially in MVVM scenario in Silverlight.
– Roboblob
Jan 8 '10 at 15:41
16
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Is there still any reason to learn AWK?
...nment that can be found on virtually every *nix is sh. So while grep, sed, etc can surely replace awk on a modern mainstream linux distro, when you move to more exotic systems, knowing a little awk is going to be Real Handy.
awk can also be used for more than just text processing. For example one o...
Any tips on how to organize Eclipse environment on multiple monitors?
...he same applies to other global operations such as refreshing the explorer etc...
– Kyr
Feb 3 '12 at 21:28
5
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What is the difference between declarative and procedural programming paradigms?
...), rather than writing out "draw string, measure string, advance position, etc." Another example is Prolog, where a "program" is a declarative set of facts and relations/deductions, and a query. The Prolog engine figures out how to evaluate the query: you don't need to tell it how to do so. Final...
HTML text input allow only numeric input
...is still allows to enter characters like /, multiple dots, other operators etc.
– Mahendra Liya
Mar 12 '13 at 19:36
6
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Integrated Markdown WYSIWYG text editor
...shed in a gist somewhere as well? Stable version list of the dependencies, etc.? Thanks!
– Jameson
Mar 21 '17 at 4:33
1
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How to get JavaScript caller function line number? How to get JavaScript caller source URL?
...ou want( for example in firefox you can get the file name, and line number etc.. ; in chrome you get something similar if you read the 'stack' property of the Error instance).
Long story short , you can do something like this:
function errorHandler(error, errorInstance){
this.errorMessage = er...
Get to UIViewController from UIView?
...
I modified de answer so I can pass any view, button, label etc. to get it's parent UIViewController. Here is my code.
+(UIViewController *)viewController:(id)view {
UIResponder *responder = view;
while (![responder isKindOfClass:[UIViewController class]]) {
responde...