大约有 42,000 项符合查询结果（耗时：0.0416秒） [XML]
What is the difference between HTTP status code 200 (cache) vs status code 304?
... cached objects were still stored in local cache and had not yet expired.
304s, on the other hand, are the response of the server after the browser has checked if a file was modified since the last version it had cached (the answer being "no").
For most optimal web performance, you're best off set...
Why does CSS work with fake elements?
...
|
edited Jun 3 '14 at 15:09
BoltClock♦
601k141141 gold badges12611261 silver badges12641264 bronze badges
...
Javascript calculate the day of the year (1 - 366)
How do I use javascript to calculate the day of the year, from 1 - 366? For example:
22 Answers
...
Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
... |
edited Dec 21 '16 at 0:33
answered Mar 13 '12 at 19:48
A...
Get index of array element faster than O(n)
...
|
edited Feb 13 '13 at 0:37
answered Jun 5 '11 at 10:41
...
LINQ where vs takewhile
...d find all elements matching the condition
var intList = new int[] { 1, 2, 3, 4, 5, -1, -2 };
Console.WriteLine("Where");
foreach (var i in intList.Where(x => x <= 3))
Console.WriteLine(i);
Console.WriteLine("TakeWhile");
foreach (var i in intList.TakeWhile(x => x <= 3))
Console....
Getting key with maximum value in dictionary?
...
632
You can use operator.itemgetter for that:
import operator
stats = {'a':1000, 'b':3000, 'c': 10...
How to print without newline or space?
...
In Python 3, you can use the sep= and end= parameters of the print function:
To not add a newline to the end of the string:
print('.', end='')
To not add a space between all the function arguments you want to print:
print('a', 'b'...
Base64: What is the worst possible increase in space usage?
...the size of the base-64 representation of a string of size n is:
ceil(n / 3) * 4
So, for a 16kB array, the base-64 representation will be ceil(16*1024/3)*4 = 21848 bytes long ~= 21.8kB.
A rough approximation would be that the size of the data is increased to 4/3 of the original.
...