大约有 40,700 项符合查询结果(耗时:0.0372秒) [XML]
Should __init__() call the parent class's __init__()?
I'm used that in Objective-C I've got this construct:
7 Answers
7
...
How to set the prototype of a JavaScript object that has already been instantiated?
Suppose I have an object foo in my JavaScript code. foo is a complex object and it is generated somewhere else. How can I change the prototype of the foo object?
...
Difference Between Schema / Database in MySQL
Is there a difference between a schema and a database in MySQL? In SQL Server, a database is a higher level container in relation to a schema.
...
How do you kill a Thread in Java?
...
See this thread by Sun on why they deprecated Thread.stop(). It goes into detail about why this was a bad method and what should be done to safely stop threads in general.
The way they recommend is to use a shared variable as a...
Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
One of the tips for jslint tool is:
16 Answers
16
...
What are POD types in C++?
I've come across this term POD-type a few times.
What does it mean?
9 Answers
9
...
Why use Abstract Base Classes in Python?
... I fail to understand the need for ABC (abstract base classes). The help is good on how to use them.
5 Answers
...
Why is it bad style to `rescue Exception => e` in Ruby?
Ryan Davis’s Ruby QuickRef says (without explanation):
6 Answers
6
...
What is the maximum value for an int32?
...
It's 2,147,483,647. Easiest way to memorize it is via a tattoo.
share
edited Feb 21 '18 at 1:13
...
When do we need curly braces around shell variables?
...
In this particular example, it makes no difference. However, the {} in ${} are useful if you want to expand the variable foo in the string
"${foo}bar"
since "$foobar" would instead expand the variable identified by foobar.
Cur...
