大约有 30,000 项符合查询结果（耗时：0.0449秒） [XML]
C#: How to convert a list of objects to a list of a single property of that object?
...
Thanks. Also, how would I sort that alphabetically by firstname?
– User
Sep 22 '09 at 16:36
...
Outputting data from unit test in python
...
What if I call a method foo inside testSomething and it logs something. How can I see the output for that without passing the logger to foo?
– simao
Nov 2 '10 at 0:57
...
Does it make sense to do “try-finally” without “catch”?
...ppropriately. Below is a concrete example of handling the exception from a calling method.
public void yourOtherMethod() {
try {
yourMethod();
} catch (YourException ex) {
// handle exception
}
}
public void yourMethod() throws YourException {
try {
db.s...
Height of status bar in Android [duplicate]
...
Instead of hard coding it, better to calculate dynamically. The above method worked for me!
– alchemist
Jul 5 '13 at 7:20
...
What's an elegant way to conditionally add a class to an HTML element in a view?
... you can use Rail's record tag helpers such as div_for, which will automagically set your ID and class based on the record you give it. Given a Person with id 47:
# <div id="person_47" class="person good">
<% div_for @person, class: (@success ? 'good' : 'bad') do %>
<% end %>
...
Where to put model data and behaviour? [tl; dr; Use Services]
... getter/setters). I'm not advocating doing this for every service systematically.
EDIT:
I used to think this pattern would go against the "Angular model is plain old javascript object" mantra, but it seems to me now that this pattern is perfectly fine.
EDIT (2):
To be even clearer, I use a Model...
How to prevent form from being submitted?
...n't be executed and the form will be submitted either way. You should also call preventDefault to prevent the default form action for Ajax form submissions.
function mySubmitFunction(e) {
e.preventDefault();
someBug();
return false;
}
In this case, even with the bug the form won't submit!
...
Why are ToLookup and GroupBy different?
...d I ever bother with GroupBy? Why should it exist?
What happens when you call ToLookup on an object representing a remote database table with a billion rows in it?
The billion rows are sent over the wire, and you build the lookup table locally.
What happens when you call GroupBy on such an objec...
Real world use of JMS/message queues? [closed]
... In our days, instead of using JMS spec, we can use asynchronous method calls. For more info see: docs.oracle.com/javaee/6/tutorial/doc/gkkqg.html
– geo
Mar 13 '18 at 8:56
3
...
Why isn't vector a STL container?
...e-optimization reasons, the C++ standard (as far back as C++98) explicitly calls out vector<bool> as a special standard container where each bool uses only one bit of space rather than one byte as a normal bool would (implementing a kind of "dynamic bitset"). In exchange for this optimization ...