大约有 47,000 项符合查询结果（耗时：0.0644秒） [XML]
How to “perfectly” override a dict?
..._contains__
# free setdefault, __eq__, and so on
import pickle
# works too since we just use a normal dict
assert pickle.loads(pickle.dumps(s)) == s
I wouldn't subclass dict (or other builtins) directly. It often makes no sense, because what you actually want t...
How to specify an array of objects as a parameter or return value in JSDoc?
... all doc tools:
/**
* @param {Array} myArray
*/
jsdoc-toolkit, JSDoc 3, and JSDuck support the following syntax to denote an array of objects:
/**
* @param {Object[]} myArray
*/
EDIT
In case you know the keys and the variable type of the values you can also do:
/**
* @param {Array.<{myNum...
REST API Best practice: How to accept list of parameter values as input [closed]
We are launching a new REST API and I wanted some community input on best practices around how we should have input parameters formatted:
...
Why should C++ programmers minimize use of 'new'?
...on Memory leak with std::string when using std::list<std::string> , and one of the comments says this:
18 Answers
...
When annotating a class with @Component, does this mean it is a Spring Bean and Singleton?
... a class with @Component does this mean this class will be a Spring Bean and by default a singleton?
2 Answers
...
Ruby on Rails Callback, what is difference between :before_save and :before_create?
Could you explain in detail what the :before_save and :before_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur after :before_save or :before_create ?
...
How can I check if a string represents an int, without using try/except?
... is an int, so does your program. If Python changes, so does your program, and without changing a single line of code. There's some value in that. It might be the right thing to do depending on the circumstances.
– Shavais
Oct 8 '14 at 16:07
...
How do I measure time elapsed in Java? [duplicate]
...answers posted so far are quite right.
If you are measuring elapsed time, and you want it to be correct, you must use System.nanoTime(). You cannot use System.currentTimeMillis(), unless you don't mind your result being wrong.
The purpose of nanoTime is to measure elapsed time, and the purpose of...
Git: Recover deleted (remote) branch
...ull --no-reflogs | grep commit
to find the HEAD commit of deleted branch and get them back.
share
|
improve this answer
|
follow
|
...
Versioning SQL Server database
....html. I choose not to put schema dumps in under version control as alumb and others suggest because I want an easy way to upgrade my production database.
For a web application where I'll have a single production database instance, I use two techniques:
Database Upgrade Scripts
A sequence databa...