大约有 3,000 项符合查询结果(耗时:0.0215秒) [XML]
Why should I avoid multiple inheritance in C++?
...ly, it was done for bad reasons, and it will blow back in the face of the maintainer.
Summary
Consider composition of features, instead of inheritance
Be wary of the Diamond of Dread
Consider inheritance of multiple interfaces instead of objects
Sometimes, Multiple Inheritance is the right thing. I...
How do I hide javascript code in a webpage?
...
jfriend00jfriend00
539k7474 gold badges728728 silver badges755755 bronze badges
2
...
java: (String[])List.toArray() gives ClassCastException
... it can't determine what type of array to create.
use
toArray(new String[v2.size()]);
which allocates the right kind of array (String[] and of the right size)
share
|
improve this answer
...
Difference between String#equals and String#contentEquals methods
...nstanceof AbstractStringBuilder) {
char v1[] = value;
char v2[] = ((AbstractStringBuilder) cs).getValue();
int i = 0;
int n = value.length;
while (n-- != 0) {
if (v1[i] != v2[i])
return false;
i++;
}
retu...
.gitignore exclude folder but include specific subfolder
...ọc Duy (pclouds) is trying to add this feature:
commit 506d8f1 for git v2.7.0, reverted in commit 76b620d git v2.8.0-rc0
commit 5e57f9c git v2.8.0-rc0,... reverted(!) in commit 5cee3493 git 2.8.0.
So with git 2.9+, this could have actually worked, but was ultimately reverted:
application/
!ap...
Making 'git log' ignore changes for certain paths
...6315f74 ("ls-files: add pathspec matching for submodules", 2016-10-07, Git v2.11.0-rc0 -- merge listed in batch #11) and 89a1f4aaf7 ("dir: if our pathspec might match files under a dir, recurse into it", 2019-09-17, Git v2.24.0-rc0).
Of course, do_match_pathspec() had an important advantge over matc...
Checkout subdirectories in Git?
...--local uploadpack.allowanysha1inwant 1
There is no server support as of v2.19.0, but it can already be locally tested.
file://$(path) is required to overcome git clone protocol shenanigans: How to shallow clone a local git repository with a relative path?
Remember that --depth 1 already implies...
Remove multiple elements from array in Javascript/jQuery
...
There's always the plain old for loop:
var valuesArr = ["v1","v2","v3","v4","v5"],
removeValFromIndex = [0,2,4];
for (var i = removeValFromIndex.length -1; i >= 0; i--)
valuesArr.splice(removeValFromIndex[i],1);
Go through removeValFromIndex in reverse order and you can...
Suppress Scientific Notation in Numpy When Creating Array From Nested List
...rge numbers:
print(a) #prints [0.000010 22.000000 1234567799999999979944197226496.000000]
We've force-suppressed the exponential notation, but it is not rounded or justified, so specify extra formatting options:
np.set_printoptions(suppress=True,
formatter={'float_kind':'{:0.2f}'.format}) #...
How do you comment out code in PowerShell?
...ext after it a comment.
# This is a comment in Powershell
In PowerShell V2 <# #> can be used for block comments and more specifically for help comments.
#REQUIRES -Version 2.0
<#
.SYNOPSIS
A brief description of the function or script. This keyword can be used
only once in each...