大约有 41,000 项符合查询结果（耗时：0.0557秒） [XML]
Delete everything in a MongoDB database
I'm doing development on MongoDB. For totally non-evil purposes, I sometimes want to blow away everything in a database—that is, to delete every single collection, and whatever else might be lying around, and start from scratch. Is there a single line of code that will let me do this? Bonus points...
Why isn't there a Guid.IsNullOrEmpty() method
...why Guid in .NET does not have IsNullOrEmpty() method (where empty means all zeros)
6 Answers
...
JUnit: how to avoid “no runnable methods” in test utils classes
I have switched to JUnit4.4 from JUnit3.8. I run my tests using ant, all my tests run successfully but test utility classes fail with "No runnable methods" error. The pattern I am using is to include all classes with name *Test* under test folder.
...
Is there a way to make HTML5 video fullscreen?
...
HTML 5 provides no way to make a video fullscreen, but the parallel Fullscreen specification supplies the requestFullScreen method which allows arbitrary elements (including <video> elements) to be made fullscreen.
It has experimental support in a number of browsers.
Original ...
How to execute shell command in Javascript
...Except for one thing. You'll get the error "child is not a function". The call to exec() executes the command - no need to call child(). Unfortunately, the callback isn't called whenever the child process has something to output - it is called only when the child process exits. Sometimes that's OK a...
RAII and smart pointers in C++
.... This has two drawbacks - firstly, wherever we use File, we will have to called File::close() - if we forget to do this, we're holding onto the file longer than we need to. The second problem is what if an exception is thrown before we close the file?
Java solves the second problem using a finally...
What is the best way to get the count/length/size of an iterator?
Is there a "computationally" quick way to get the count of an iterator?
9 Answers
9
...
Find method references in Xcode
Is there a way in Xcode to find all the places where a method or property has been been called?
6 Answers
...
When to use an object instance variable versus passing an argument to the method
...sus simply declaring them as object instance variables that are visible to all of the object's methods?
5 Answers
...
Jenkins / Hudson environment variables
...lso, any changes you make to $PATH in your local shell (one that you personally ssh into) will not show up in Jenkins.
To change the path that Jenkins uses, you have two options (AFAIK):
1) Edit your /etc/profile file and add the paths that you want there
2) Go to the configuration page of your s...