大约有 47,000 项符合查询结果(耗时:0.0439秒) [XML]
What's the bad magic number error?
...s -- this didn't directly help me figure out my problem, but it's nice to know the answer anyways!
– Noah
Feb 5 '09 at 3:36
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How does database indexing work? [closed]
...ive million rows and is unindexed. The performance of several queries will now be analyzed. These are a query using the id (a sorted key field) and one using the firstName (a non-key unsorted field).
Example 1 - sorted vs unsorted fields
Given our sample database of r = 5,000,000 records of a fixe...
Compiling Java 7 code via Maven
...ead of CurrentJDK). Not an elegant fix but I just hardcoded the export and now it works (PS: maven on OSX is at /usr/share/maven/bin/mvn)
– Raekye
Aug 4 '13 at 6:55
6
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javascript: recursive anonymous function?
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(function foo() { foo(); })();
is a stack-blowing recursive function. Now, that said, you probably don't may not want to do this in general because there are some weird problems with various implementations of Javascript. (note — that's a fairly old comment; some/many/all of the problems desc...
How can I recognize touch events using jQuery in Safari for iPad? Is it possible?
...tically passed to the handler. For the safari browser (and android too) it now contains an array of all the touches the user has made on the screen. Each touch has its own properties (x,y coords for example)
– David Pean
Jan 21 '11 at 6:05
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Equivalent to 'app.config' for a library (DLL)
...h name: DllName.dll.config, otherwise the below code won't work properly.
Now to read from this file have such function:
string GetAppSetting(Configuration config, string key)
{
KeyValueConfigurationElement element = config.AppSettings.Settings[key];
if (element != null)
{
stri...
How do I run a Python program in the Command Prompt in Windows 7?
...s with the Command Prompt on Windows 7. (I should have figured this out by now...)
23 Answers
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Akka or Reactor [closed]
...which is what you imply by “distributed”). For “modular” I do not know enough about Reactor, in particular how you can look up active components and manage them.
If you start a real project now and need something which satisfies your first sentence, then I don’t think it would be controve...
How to expire session due to inactivity in Django?
...ion on every request like so.
request.session['last_activity'] = datetime.now()
and add a middleware to detect if the session is expired. something like this should handle the whole process...
from datetime import datetime
from django.http import HttpResponseRedirect
class SessionExpiredMiddlew...
.prop() vs .attr()
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@Neal: If you want to know what properties DOM elements have and how attributes may seed their values, keep these links to hand: The DOM2 HTML specification, the DOM2 spec, and DOM3 spec. The indexes in each case are excellent and link you straight...