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Checking whether a variable is an integer or not [duplicate]
...? So, for example, before I give data to a database query when wanting to fetch an objetc by id, which is an integer, I check if input is actually and integer and useable before handing it to the database layer.
– Henning
Jun 15 '13 at 9:49
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git pull while not in a git directory
...o what you're trying to do with that command. You can however, do it with fetch and merge:
cd /X
git --git-dir=/X/Y/.git fetch
git --git-dir=/X/Y/.git --work-tree=/X/Y merge origin/master
Original answer:
Assuming you're running bash or similar, you can do (cd /X/Y; git pull).
The git man page ...
Android emulator freezing OS X v10.9 (Mavericks) with HAXM
...em image on Intel systems based on Core microarchitecture (Core, Core2 Duo etc.).
But, it seems like even trying to emulate a 32 bit system is problematic.
NB: ARM images work fine.
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impro...
Difference between require, include, require_once and include_once?
... a generic page layout that has sections such as headers, columns, footers etc. This allows me to serve that template for every page on the site and I only need to create files in the page folder structure defining what should go into each of those positions. If I decide that a page doesn't need a s...
Send message to specific client with socket.io and node.js
...;
});
});
socket.on("message to master", function(msg) {
// Fetch the socket id from Redis
client.get("mastersocket", function(err, socketId) {
if (err) throw err;
io.sockets.socket(socketId).emit(msg);
});
});
});
I omitted the clustering code here, because it...
@import vs #import - iOS 7
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Modules are pre-built for most Apple frameworks (UIKit, MapKit, GameKit, etc). You can use them with frameworks you create yourself: they are created automatically if you create a Swift framework in Xcode, and you can manually create a ".modulemap" file yourself for any Apple or 3rd-party library....
What is the difference between buffer and cache memory in Linux?
...p understand:
Buffer is for storing file metadata (permissions, location, etc). Every memory page is kept track of here.
Cache is for storing actual file contents.
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When is the finalize() method called in Java?
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In general it's best not to rely on finalize() to do any cleaning up etc.
According to the Javadoc (which it would be worth reading), it is:
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
As Joachim pointe...
Initialising mock objects - MockIto
...You declare the variable, and give it a value - no annotations, reflection etc.
– Karu
Jun 2 '15 at 4:14
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When to use std::size_t?
...imension of an item - length of a string, amount of bytes a pointer takes, etc.
It's also portable across platforms - you'll find that 64bit and 32bit both behave nicely with system functions and size_t - something that unsigned int might not do (e.g. when should you use unsigned long
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