大约有 15,475 项符合查询结果（耗时：0.0218秒） [XML]
Check if OneToOneField is None in Django
... other sorts of magic which may happen elsewhere -- you have to extend the test as follows: if hasattr(object, 'onetoonerevrelattr') and object.onetoonerevrelattr != None
– class stacker
Mar 15 '13 at 13:17
...
Do zombies exist … in .NET?
...Line();
}
private static void Target()
{
using (var file = File.Open("test.txt", FileMode.OpenOrCreate))
{
ExitThread(0);
}
}
This program starts a thread Target which opens a file and then immediately kills itself using ExitThread. The resulting zombie thread will never rele...
How does TestFlight do it?
TestFlight offers over-the-air beta distribution of iOS apps (on non-jailbroken devices). How can this be done? Is this an iOS feature, or a vulnerability exploit?
...
Better way to check variable for null or empty string?
...
I'll humbly accept if I'm wrong, but I tested on my own end and found that the following works for testing both string(0) "" and NULL valued variables:
if ( $question ) {
// Handle success here
}
Which could also be reversed to test for success as such:
if ...
Rails: how do I validate that something is a boolean?
...oth Rails 3 and 4, having validates :field, inclusion: [true, false] would test for inclusion in a list of values, with the side-effect to test for the field's presence (unless one of those values is nil of course).
– Martin Carel
Jul 14 '15 at 19:38
...
How to debug a maven goal with intellij idea?
...
What if I want to run tests using mvn test -Dtest=com.example.MyTest (my test case fails only when run using maven) - IDEA breakpoints are ignored in this case, it seems... :(
– RobertG
Jun 20 '17 at 14:52
...
LINQPad [extension] methods [closed]
...he appropriate spot.
To use:
var dc = new DumpContainer();
dc.Content = "Test";
// further down in the code
dc.Content = "Another test";
OnDemand is an extension method that will not output the contents of its parameter to the output window, but instead add a clickable link, that when clicked wi...
String slugification in Python
...on-slugify
Works like this:
from slugify import slugify
txt = "This is a test ---"
r = slugify(txt)
self.assertEquals(r, "this-is-a-test")
txt = "This -- is a ## test ---"
r = slugify(txt)
self.assertEquals(r, "this-is-a-test")
txt = 'C\'est déjà l\'été.'
r = slugify(txt)
self.assertEquals(r...
Is there a better way to find out if a local git branch exists?
...ch exists. This will give you a false positive for a tag. You can easily test this yourself. You need refs/heads/ to distinguish from tags which are in refs/tags, and even remotes in refs/remotes.
– msouth
Jun 30 '16 at 20:08
...
No newline at end of file
...n lead to unexpected behavior when using other tools on the file.
Here is test.txt:
first line
second line
There is no newline character on the last line. Let's see how many lines are in the file:
$ wc -l test.txt
1 test.txt
Maybe that's what you want, but in most cases you'd probably expect ...