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How to delete files/subfolders in a specific directory at the command prompt in Windows
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Use single percentage sign if you wish to run direct from command line e.g. %p
– Alex
Mar 9 '14 at 8:24
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How to locate the vimrc file used by vim editor?
...y exist.
You can check the full path of your vimrc with
:echo $MYVIMRC
If the output is empty, then your vim doesn't use a user vimrc (just create it if you wish).
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How to replace local branch with remote branch entirely in Git?
...replace whichever branch your currently on with the contents of master. So if you're on e.g. a feature-branch, it will replace all its commits with master, so make sure you've checked out the branch you're replacing first.
– Zoltán
Jul 15 '16 at 8:29
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Should I use pt or px?
What is the difference between pt and px in CSS? Which one should I use and why?
5 Answers
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
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Be careful with this approach -- if you had other attributes about that column (for example a :limit constraint), you need to repeat those attributes when using change_column, or they will be lost. For this reason, I prefer to use change_column_null
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What is the AppDelegate for and how do I know when to use it?
...onality by "area of concern".
A delegate object is an object that gets notified when the object to which it is connected reaches certain events or states. In this case, the Application Delegate is an object which receives notifications when the UIApplication object reaches certain states. In many r...
Is it possible to create a multi-line string variable in a Makefile
...tricky part is getting your multi-line variable back out of the makefile. If you just do the obvious thing of using "echo $(ANNOUNCE_BODY)", you'll see the result that others have posted here -- the shell tries to handle the second and subsequent lines of the variable as commands themselves.
Howev...
What is “point free” style (in Functional Programming)?
...ion [...] instead of variables.
Haskell example:
Conventional (you specify the arguments explicitly):
sum (x:xs) = x + (sum xs)
sum [] = 0
Point-free (sum doesn't have any explicit arguments - it's just a fold with + starting with 0):
sum = foldr (+) 0
Or even simpler: Instead of g(x) = f...
获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
...L, DIGCF_PRESENT); //getting all devices with a removable disk guid
if ( INVALID_HANDLE_VALUE == hDevInfo )
{
return devInfos;//exit if there are no devices
}
try
{
std::wstring name;
RemovableDeviceInfo ...
Why can't you modify the data returned by a Mongoose Query (ex: findById)
...d(sq.question, function(err, q){
sq.question = q;
if(++counter == len) {
res.send(data);
}
});
});
});
This way data is already a plain JS object you can manipulate as you need to.
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