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Can virtual functions have default parameters?
If I declare a base class (or interface class) and specify a default value for one or more of its parameters, do the derived classes have to specify the same defaults and if not, which defaults will manifest in the derived classes?
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Aborting a shell script if any command returns a non-zero value?
...ero exit value. A simple command is any command not part of an if, while, or until test, or part of an && or || list.
See the bash(1) man page on the "set" internal command for more details.
I personally start almost all shell scripts with "set -e". It's really annoying to have a script ...
Batch file to copy files from one folder to another folder
I have a storage folder on a network in which all users will store their active data on a server. Now that server is going to be replaced by a new one due to place problem so I need to copy sub folders files from the old server storage folder to new server storage folder. I have below ex:
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“var” or no “var” in JavaScript's “for-in” loop?
What's the correct way to write a for-in loop in JavaScript? The browser doesn't issue a complaint about either of the two approaches I show here. First, there is this approach where the iteration variable x is explicitly declared:
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How to have comments in IntelliSense for function in Visual Studio?
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To generate an area where you can specify a description for the function and each parameter for the function, type the following on the line before your function and hit Enter:
C#: ///
VB: '''
See Recommended Tags for Documentation Comments (C# Programming Guide) for more info...
Git vs Team Foundation Server [closed]
... very familiar with TFS. Can someone with experience compare branching support on TFS to Git branching? Also, in general, what are the pros and cons of TFS? Am I going to hate it after
using Git for a few years?
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What is the best way to give a C# auto-property an initial value?
...o implemented properties an initial value, you have to do it in a constructor.
Since C# 6.0, you can specify initial value in-line. The syntax is:
public int X { get; set; } = x; // C# 6 or higher
DefaultValueAttribute is intended to be used by the VS designer (or any other consumer) to specify ...
Ruby, Difference between exec, system and %x() or Backticks
...am. You have to provide the command as a string argument to this method. For example:
>> system("date")
Wed Sep 4 22:03:44 CEST 2013
=> true
The invoked program will use the current STDIN, STDOUT and STDERR objects of your Ruby program. In fact, the actual return value is either true, f...
Difference between wait and sleep
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wait waits for a process to finish; sleep sleeps for a certain amount of seconds.
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Find unused npm packages in package.json
...least version 10 of Node).
Install the module:
npm install depcheck -g
or
yarn global add depcheck
Run it and find the unused dependencies:
depcheck
The good thing about this approach is that you don't have to remember the find or grep command.
To run without installing use npx:
npx depc...