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What is the Python 3 equivalent of “python -m SimpleHTTPServer”
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c++ 代码调用nsis安装包实现静默安装 - 脚本技术 - 清泛IT社区，为创新赋能！
...sp; // The file defined by lpFile was not found and
// an error message popped up.
&nb...
How can i tell if an object has a key value observer attached
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Put a try catch around your removeObserver call
@try{
[someObject removeObserver:someObserver forKeyPath:somePath];
}@catch(id anException){
//do nothing, obviously it wasn't attached because an exception was thrown
}
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How do you perform a left outer join using linq extension methods
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You need to remember to Order your joined table or the .FirstOrDefault() is going to get a random row from the multiple rows that might match the join criteria, whatever the database happens to find first.
– Chris Moschini
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Finding Variable Type in JavaScript
... and the OP was clearly trying to figure out the type of a value contained by a variable
– Juan Mendes
Aug 18 at 12:58
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Convert JSON style properties names to Java CamelCase names with GSON
...GSON to convert JSON data I get to a Java object. It works pretty well in all my tests.
The problem is that our real objects have some properties named like is_online. GSON only maps them if they are named totally equal, it would be nice to have GSON convert the names to Java camel case isOnline.
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What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
...can omit dot when using the prefix, infix and postfix notations -- the so called operator notation. While using the operator notation, and only then, you can omit the parenthesis if there is less than two parameters passed to the method.
Now, the operator notation is a notation for method-call, whi...
Best way to store date/time in mongodb
...shell version: 2.4.9
connecting to: 10.0.1.223/test
Create your database by inserting items
> db.penguins.insert({"penguin": "skipper"})
> db.penguins.insert({"penguin": "kowalski"})
>
Lets make that database the one we are on now
> use penguins
switched to db penguins
Get the r...
Removing viewcontrollers from navigation stack
...e this code and enjoy:
NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
// [navigationArray removeAllObjects]; // This is just for remove all view controller from navigation stack.
[navigationArray removeObjectAtIndex: 2]; // ...
The following untracked working tree files would be overwritten by merge, but I don't care
... tracking the files locally but identical files are tracked remotely so in order to "pull" your system would be forced to overwrite the local files which are not version controlled.
Try running
git add *
git stash
git pull
This will track all files, remove all of your local changes to those fi...