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Is there a decorator to simply cache function return values?
...ion while the property syntax suggests a quick lookup.
[Update: The class-based memoization decorator I had linked to and quoted here previously doesn't work for methods. I've replaced it with a decorator function.] If you're willing to use a general-purpose memoization decorator, here's a simple...
tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...多通道和内存条rank级并行优化。一个内存通道一般使用64位数据总线，双通道同时工作提供了128位传输能力。Rank是指DIMM上几个内存颗粒共同提供的64位数据，同一条内存上的不同rank因为共享数据总线而不能被同时访问，但内存...
__init__ for unittest.TestCase
...
You are overriding the TestCase's __init__, so you might want to let the base class handle the arguments for you.
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CSS Input with width: 100% goes outside parent's bound
...TW
Inheriting box-sizing Probably Slightly Better Best-Practice.
Here's a demonstration in your specific context:
#mainContainer {
line-height: 20px;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
background-color: rgba(0, 50, 94, 0.2);
margin: 20px auto;
display: table;...
How to decorate a class?
...rgs, **kwargs):
pass
class FooMeta(type):
def __new__(cls, name, bases, attrs):
attrs['__init__'] = substitute_init
return super(FooMeta, cls).__new__(cls, name, bases, attrs)
class Foo(object):
__metaclass__ = FooMeta
def __init__(self, value1):
pass
R...
How to parse a query string into a NameValueCollection in .NET
... to HttpUtility.ParseQueryString because it does not decode the values (so base64 encoded values are preserved)
– CRice
Jul 7 '17 at 1:30
1
...
How to find list intersection?
... @NItishKumarPal intersection is commonly understood to be set based. You are looking for a slightly different animal - and you may need to do that manually by sorting each list and merging the results - and keeping dups in the merging.
– javadba
Ja...
Computational complexity of Fibonacci Sequence
...is asymptotically O(2n). You can then prove your conjecture by induction.
Base: n = 1 is obvious
Assume T(n-1) = O(2n-1), therefore
T(n) = T(n-1) + T(n-2) + O(1) which is equal to
T(n) = O(2n-1) + O(2n-2) + O(1) = O(2n)
However, as noted in a comment, this is not the tight bound. An interestin...
What's the fastest way to delete a large folder in Windows?
...r /s/q foldername
This is nearly three times faster than a single rmdir, based on time tests with a Windows XP encrypted disk, deleting ~30GB/1,000,000 files/15,000 folders: rmdir takes ~2.5 hours, del+rmdir takes ~53 minutes. More info at Super User.
This is a regular task for me, so I usually ...
Is there an equivalent to background-size: cover and contain for image elements?
...ts box, then the object will be
clipped to fit.
Also, see this Codepen demo which compares object-fit: cover applied to an image with background-size: cover applied to a background image
Solution #2 - Replace the img with a background image with css
body {
margin: 0;
}
img {
po...