大约有 4,769 项符合查询结果（耗时：0.0272秒） [XML]
Install NPM into home directory with distribution nodejs package (Ubuntu)
...ages (or the chris-lea ppa for more recent releases) but install NPM to my home directory.
8 Answers
...
Hidden Features of C++? [closed]
...
Most C++ programmers are familiar with the ternary operator:
x = (y < 0) ? 10 : 20;
However, they don't realize that it can be used as an lvalue:
(a == 0 ? a : b) = 1;
which is shorthand for
if (a == 0)
a = 1;
else
b = 1;
Use with caution :-)
...
How to set the width of a cell in a UITableView in grouped style
I have been working on this for about 2 days, so i thought i share my learnings with you.
7 Answers
...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
I need to check a JavaScript array to see if there are any duplicate values. What's the easiest way to do this? I just need to find what the duplicated values are - I don't actually need their indexes or how many times they are duplicated.
...
Why does Java's hashCode() in String use 31 as a multiplier?
...e multiplication overflowed, information would be lost, as multiplication by 2 is equivalent to shifting. The advantage of using a prime is less clear, but it is traditional. A nice property of 31 is that the multiplication can be replaced by a shift and a subtraction for better performance: 31 * i ...
Target elements with multiple classes, within one rule
...so that the same classes could be different within different containers. Say I have this in my CSS:
2 Answers
...
Are there any naming convention guidelines for REST APIs? [closed]
When creating REST APIs, are there any guidelines or defacto standards for naming conventions within the API (eg: URL endpoint path components, querystring parameters)? Are camel caps the norm, or underscores? others?
...
How to export plots from matplotlib with transparent background?
I am using matplotlib to make some graphs and unfortunately I cannot export them without the white background.
2 Answers
...
Extending from two classes
...
You can only Extend a single class. And implement Interfaces from many sources.
Extending multiple classes is not available. The only solution I can think of is not inheriting either class but instead having an internal var...
Why Would I Ever Need to Use C# Nested Classes [duplicate]
I'm trying to understand about nested classes in C#. I understand that a nested class is a class that is defined within another class, what I don't get is why I would ever need to do this.
...