大约有 45,000 项符合查询结果(耗时:0.0580秒) [XML]
When should assertions stay in production code? [closed]
...
Actually, the worst thing that happens is when code crashes due to something that is NOT an assert. If the code will definitely crash later on with 100% probability, then the assert must absolutely be there. If you deref a pointer, then you have to implic...
What is the ellipsis (…) for in this method signature?
In the App Engine docs , what is the ellipsis ( JID... ) for in this method signature?
5 Answers
...
What should every JavaScript programmer know? [closed]
...avascript as a language. It's good thing to consider when designing a web app, but it's still not an answer that belongs in this thread.
– TM.
Apr 13 '10 at 17:30
24
...
Database Design for Revisions?
...stName = 'Doe' results in a full table scan. Not the best idea to scale an application.
– Kaii
Aug 13 '18 at 21:17
...
What is the purpose of a self executing function in javascript?
...
@AlexanderBird but that already happens in local variables inside functions: function(){ var foo = 3; alert(foo); }; alert(foo); So I still don't get it
– João Pimentel Ferreira
Dec 3 '17 at 19:08
...
Django: multiple models in one template using forms [closed]
I'm building a support ticket tracking app and have a few models I'd like to create from one page. Tickets belong to a Customer via a ForeignKey. Notes belong to Tickets via a ForeignKey as well. I'd like to have the option of selecting a Customer (that's a whole separate project) OR creating a new ...
Can I redirect the stdout in python into some sort of string buffer?
...method.
This can be used to good effect to "catch" stdout output in a GUI application.
Here's a silly example in PyQt:
import sys
from PyQt4 import QtGui
class OutputWindow(QtGui.QPlainTextEdit):
def write(self, txt):
self.appendPlainText(str(txt))
app = QtGui.QApplication(sys.argv)...
Android Task Affinity Explanation
...
What is Android Task Affinity used for?
An android application has Activities that form a stack like a deck of cards. If you start an android application, and start five activities A,B,C,D,E. They will form a stack
E - chat view
D - weather screen
C - map view
B - ...
How to know user has clicked “X” or the “Close” button?
...nd on MSDN is just for the purpose of checking whether the user closed the app, or it was due to a shutdown, or closed by the task manager, etc...
You can do different actions, according to the reason, like:
void Form_FormClosing(object sender, FormClosingEventArgs e)
{
if(e.CloseReason == Clo...
Labels for radio buttons in rails form
My question is similar to this one
but for a Rails app.
5 Answers
5
...