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Shell command to sum integers, one per line?
...the stack has two or more values, run "add_top_of_stack"
Print the result, now the only item left in the stack
To really understand the simplicity and power of dc, here is a working Python script that implements some of the commands from dc and executes a Python version of the above command
Is there a way for non-root processes to bind to “privileged” ports on Linux?
...NET_BIND_SERVICE capability. setcap is in the debian package libcap2-bin.
Now for the caveats:
You will need at least a 2.6.24 kernel
This won't work if your file is a script. (ie, uses a #! line to launch an interpreter). In this case, as far I as understand, you'd have to apply the capability t...
Why does .NET foreach loop throw NullRefException when collection is null?
...I think of it, returning null for a collection is an error. The way it is now, the runtime gives you a meaningful exception in this case, but it's easy to work around (ie: above) if you don't like this behavior. If the compiler hid this from you, you'd lose the error checking at runtime, but there...
Finding duplicates in O(n) time and O(1) space
...will it work when i arrives at the home location, m? Yes it will, because now, even though at this new i we find that the 1st half of the if condition, A[i] != i, is true, the 2nd half tests whether the location it points to is a home location and finds that it isn't. In this situation we no longe...
Only parameterless constructors and initializers are supported in LINQ to Entities
...query.ToList().Select(r => new OrderDetails(r.order, r.orderDetail));
Now your custom object (which takes two objects as a parameter) can populate your properties as needed.
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List of encodings that Node.js supports
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for now, latin1 is also included as alias of ascii
– thybzi
Oct 24 '16 at 21:26
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Insert Update trigger how to determine if insert or update
... I was creating separate Triggers for insert ,update and delete .Now its great to know they can be combined !
– UJS
Nov 16 '17 at 6:12
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XDocument.ToString() drops XML Encoding Tag
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Strange, but I can't get it working now (.net fiddle) - it always uses "utf-16" encoding. I've looked inside XDocument.Save(TextWriter) implementation and it just ignores the declaration's encoding, as opposed to XDocument.Save(String) or XDocument.Save(Stream)...
How to install an apk on the emulator in Android Studio?
...te CMD in it and save it.
4- copy your desired apk to the same folder
5- now open run.bat and write adb install "your_apk_file.apk"
6- wait until the installation is complete
7- voila your apk is installed to your emulator.
Note: to re-install the application if it already existe use adb insta...
Semaphore vs. Monitors - what's the difference?
... and bike rental place. I will never forget the difference between the two now.
– Drupad Panchal
Sep 7 '11 at 15:40
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