大约有 5,680 项符合查询结果（耗时：0.0141秒） [XML]
Setting default values for columns in JPA
...r example:
@Column(name="Price", columnDefinition="Decimal(10,2) default '100.00'")
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How can I center an absolutely positioned element in a div?
...han the 50% screensize. I solved this by setting the outer div to "width: 100%" and removing the left property. For the inner div, I simply set my text-align to center. This solves the issue.
– Nicky L.
Jan 22 '14 at 16:14
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Event listener for when element becomes visible?
...erval(poll);
} else {
previous_style = current_style;
}
}, 100);
The DOM standard also specifies mutation events, but I've never had the chance to use them, and I'm not sure how well they're supported. You'd use them like this:
target.addEventListener('DOMAttrModified', function()...
How to shrink the .git folder
...RELEASE-1.4.0 is tip) using git-remote-hg and this yielded a repo of about 100MB. Using git gc --aggressive --prune brought this down to 19MB.
– Lekensteyn
Apr 25 '13 at 14:42
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How do you deal with configuration files in source control?
...
and assuming there are not 100s of developers all putting their customized settings there as well (it would still work, but be very cumbersome)
– Alexander Bird
Jun 21 '11 at 13:53
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Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
... Let's say you have 4 cores:
With IRIX mode on, 1 fully utilized core is 100% and 4 cores are 400%.
With IRIX mode off, 1 fully utilized core is 25% and 4 cores are 100%.
This means that by default, top on Linux will show an infinite loop as ~100% and Windows will show it as ~25%, and it means...
Compare double to zero using epsilon
...grammer is intending. Assuming 64-bit IEEE 754, in your example same(0, 1e-100) returns false, which is probably not what the programmer wants. The programmer probably rather wants some small threshold to test for equality, e.g. +/-1e-6 or +/-1e-9, instead of +/-nextafter.
– vi...
Emacs bulk indent for Python
...pply it 10 times.
(I know it doesn't sound like much, but try re-indenting 100 lines of garbage literal without missing down-arrow, and then having to go up 5 lines and repeat things ;) ).
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Get difference between two lists
...f x not in s]
Performance test
import timeit
init = 'temp1 = list(range(100)); temp2 = [i * 2 for i in range(50)]'
print timeit.timeit('list(set(temp1) - set(temp2))', init, number = 100000)
print timeit.timeit('s = set(temp2);[x for x in temp1 if x not in s]', init, number = 100000)
print timeit...
Android: Expand/collapse animation
...View, 2000, 200);
// Collapsing the View
collapse(yourView, 2000, 100);
Easy enough!
Thanks LenaYan for the initial code!
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