大约有 15,700 项符合查询结果（耗时：0.0277秒） [XML]
Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...pproach suggested by mpaf uses much less memory, but is 2-3x slower for my test case.
from django.core.paginator import Paginator
def chunked_iterator(queryset, chunk_size=10000):
paginator = Paginator(queryset, chunk_size)
for page in range(1, paginator.num_pages + 1):
for obj in ...
How to convert a LocalDate to an Instant?
...
In a unit test I am writing, I have a LocalDate, that is converted to a com.google.protobuf.Timestamp and then mapped back to a LocalDate via an Instant, both ways. When using the approach the accepted answer suggests, I get the expe...
How to check that a string is a palindrome using regular expressions?
...
In an oral test zou shoulsd go with "formalz it is impossible", but you should point out that some regex engines allow it.
– Oliver A.
Oct 9 '15 at 21:30
...
How to cache data in a MVC application
...class so its easy access and updated the constructor allow for DI for unit testing. Hope this helps.
– WestDiscGolf
Jan 8 '10 at 12:23
1
...
Check if a Class Object is subclass of another Class Object in Java
...());
} else {
return false;
}
}
}
// Test the code
System.out.println("isInheritedClass(new A(), new B()):" + isInheritedClass(new A(), new B()));
System.out.println("isInheritedClass(new A(), new C()):" + isInheritedClass(new A(), new C()));
System...
How to convert a byte array to a hex string in Java?
...har[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
public static String bytesToHex(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
for (int j = 0; j < bytes.length; j++) {
int v = bytes[j] & 0xFF;
hexChars[j * 2] = HEX_ARRAY[v >>> 4];
he...
What's the best way to retry an AJAX request on failure using jQuery?
...unning twice.
You can copy-paste these snippets (as-is) to the console to test them
share
|
improve this answer
|
follow
|
...
Where can I locate themes for VS2012
... Windows 8 Pro x64, Visual Studio 2012 Update 1, and it works perfectly (tested on three different machines). And it is not necessary to restart Windows, restarting VS is enough.
– Konamiman
Jan 10 '13 at 10:26
...
Proper way to exit iPhone application?
...ethods will not be invoked if you call exit.
If during development or testing it is necessary to terminate your application, the abort function, or assert macro is recommended
share
|
improve ...
Django Passing Custom Form Parameters to Formset
...
You're right, I'm sorry; my earlier testing didn't go far enough. I tracked this down, and it breaks due to some oddities in the way FormSets work internally. There is a way to work around the problem, but it begins to lose the original elegance...
...