大约有 30,000 项符合查询结果(耗时:0.0290秒) [XML]
CSS background opacity with rgba not working in IE 8
...erybody, but it's worth considering in some cases, since it saves a lot of time and works flawlessly. Hope that helps somebody!
share
|
improve this answer
|
follow
...
Passing a String by Reference in Java?
... faster that s += "..." since it doesn't allocate new String objects every time. In fact when you write Java code like s = "Hello " + name, then the compiler will generate byte code which creates a StringBuilder and calls append() two times.
– Aaron Digulla
May...
How to remove specific elements in a numpy array
...y since array scalars are immutable, similar to strings in Python, so each time a change is made to it, a new object is created. I.e., to quote the delete() docs:
"A copy of arr with the elements specified by obj removed. Note that
delete does not occur in-place..."
If the code I post has ou...
pyplot scatter plot marker size
...d to use 'scatter' initially for this purpose. After quite a bit of wasted time - I settled on the following solution.
import matplotlib.pyplot as plt
input_list = [{'x':100,'y':200,'radius':50, 'color':(0.1,0.2,0.3)}]
output_list = []
for point in input_list:
output_list.append(plt.Circ...
Symbolic link to a hook in git
.../hooks so I don't have to copy the file from one folder to the other every time someone changes it so I tried:
6 Answers
...
What is the maximum possible length of a .NET string?
...e. Useful if you know you're going to be using 10,000,000 entries ahead of time, allowing you to ignore some of the crunch.
– Kyle Baran
Aug 29 '14 at 15:53
3
...
What is in your .vimrc? [closed]
...but instead with jk, as I think hitting jk is faster than hitting jj. Only times this has affected me is typing out the alphabet, so maybe kj you be better.
– David Miani
Aug 2 '09 at 16:02
...
How can I generate random alphanumeric strings?
...
The following line is more memory (and thus time) efficient than the given one return new string(Enumerable.Range(1, length).Select(_ => chars[random.Next(chars.Length)]).ToArray());
– Tyson Williams
Nov 11 '16 at 18:06
...
How to change a nullable column to not nullable in a Rails migration?
...there are null rows in that database? I'm ok with setting those columns to Time.now if they're currently null.
8 Answers
...
How to elegantly ignore some return values of a MATLAB function?
... was even released, so @ManWithSleeve's answer wouldn't have worked at the time. Now, of course, that's the right approach.
– Jason S
Sep 20 '11 at 14:37
2
...
