大约有 15,000 项符合查询结果（耗时：0.0184秒） [XML]
Override valueof() and toString() in Java enum
... spaces in their values so it's all bunched up. I want to override toString() to add these spaces where I tell it to.
7 A...
Select distinct using linq [duplicate]
...
myList.GroupBy(test => test.id)
.Select(grp => grp.First());
Edit: as getting this IEnumerable<> into a List<> seems to be a mystery to many people, you can simply write:
var result = myList.GroupBy(test =...
JavaScript style for optional callbacks
...ch occasionally (not always) will receive a callback and run it. Is checking if the callback is defined/function a good style or is there a better way?
...
Code Golf - π day
Guidelines for code-golf on SO
26 Answers
26
...
Non greedy (reluctant) regex matching in sed?
I'm trying to use sed to clean up lines of URLs to extract just the domain.
22 Answers
...
Why not be dependently typed?
I have seen several sources echo the opinion that "Haskell is gradually becoming a dependently-typed language". The implication seems to be that with more and more language extensions, Haskell is drifting in that general direction, but isn't there yet.
...
How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?
Using NodeJS, I want to format a Date into the following string format:
18 Answers
1...
How can I rename a database column in a Ruby on Rails migration?
I wrongly named a column hased_password instead of hashed_password .
26 Answers
26
...
Are static class variables possible in Python?
...class definition, but not inside a method are class or static variables:
>>> class MyClass:
... i = 3
...
>>> MyClass.i
3
As @millerdev points out, this creates a class-level i variable, but this is distinct from any instance-level i variable, so you could have
>>>...
Signal handling with multiple threads in Linux
In Linux, what happens when a program (that possibly has multiple threads) receives a signal, like SIGTERM or SIGHUP?
2 Ans...