大约有 41,000 项符合查询结果（耗时：0.0333秒） [XML]
data.table vs dplyr: can one do something well the other can't or does poorly?
...able , not so much with dplyr . I've read through some dplyr vignettes and examples that have popped up on SO, and so far my conclusions are that:
...
Is Python interpreted, or compiled, or both?
From my understanding:
11 Answers
11
...
How do you know what to test when writing unit tests? [closed]
... code, or a completely new feature.
Start simple. Don’t go running off and trying to get your head round
a testing framework as well as being
TDD-esque. Debug.Assert works fine.
Use it as a starting point. It doesn’t
mess with your project or create
dependencies.
Start positive. Yo...
Must Dependency Injection come at the expense of Encapsulation?
If I understand correctly, the typical mechanism for Dependency Injection is to inject either through a class' constructor or through a public property (member) of the class.
...
When - and why - should you store data in the Windows Registry?
... changes to those options, can't easily port them from machine to machine, and it all makes me really yearn for the good old days of .INI files...
...
Why would you use Oracle database? [closed]
...ho know any other db hate Oracle, those that don't assume that all DB code and/or ORM tools are difficult to use.
If I started a business that I believed was going to scale to Amazon proportions I might consider NoSQL solutions, otherwise I'd choose PostgreSQL, SQL Server (or indeed even Sybase now...
When to use DataContract and DataMember attributes?
...
Since a lot of programmers were overwhelmed with the [DataContract] and [DataMember] attributes, with .NET 3.5 SP1, Microsoft made the data contract serializer handle all classes - even without any of those attributes - much like the old XML serializer.
So as of .NET 3.5 SP1, you don't have ...
what is the difference between ajax and jquery and which one is better? [closed]
...used about using ajax or jquery so I want to know what the differences are and which one is better such as performance and complexity .
...
What is the difference between XMLHttpRequest, jQuery.ajax, jQuery.post, jQuery.get
...ody provide some examples to know the difference in terms of functionality and performance?
6 Answers
...
JavaScript unit test tools for TDD
I've looked into and considered many JavaScript unit tests and testing tools, but have been unable to find a suitable option to remain fully TDD compliant. So, is there a JavaScript unit test tool that is fully TDD compliant?
...