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When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
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Write-Error should be used if you want to inform the user of a non-critical error. By default all it does is print an error message in red text on the console. It does not stop a pipeline or a loop from continuing. Throw on the other hand produces what...
@class vs. #import
... any circular inclusions. I also understand that an #import is a simple ifndef so that an include only happens once.
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Simple state machine example in C#?
...on(CurrentState, command);
ProcessState nextState;
if (!transitions.TryGetValue(transition, out nextState))
throw new Exception("Invalid transition: " + CurrentState + " -> " + command);
return nextState;
}
public ProcessState M...
deny directory listing with htaccess
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Options -Indexes should work to prevent directory listings.
If you are using a .htaccess file make sure you have at least the "allowoverride options" setting in your main apache config file.
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Generate unique random numbers between 1 and 100
...arr.length < 8){
var r = Math.floor(Math.random() * 100) + 1;
if(arr.indexOf(r) === -1) arr.push(r);
}
console.log(arr);
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Preferred Java way to ping an HTTP URL for availability
... works perfectly fine. Using GET is more reliable in case you intend to verify links/resources not domains/hosts.
Testing the server for availability is not enough in my case, I need to test the URL (the webapp may not be deployed)
Indeed, connecting a host only informs if the host is availa...
How to Sort a List by a property in the object
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If you need to sort the list in-place then you can use the Sort method, passing a Comparison<T> delegate:
objListOrder.Sort((x, y) => x.OrderDate.CompareTo(y.OrderDate));
If you prefer to create a new, sorted sequ...
Using std Namespace
There seem to be different views on using 'using' with respect to the std namespace.
15 Answers
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Daemon Threads Explanation
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So if I have a child thread that is performing a file write operation which is set to non-deamon, Does that mean I have to make it exit explicitly ?
– Ciasto piekarz
Jun 15 '14 at 15:19
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Is there a bash command which counts files?
... bash:
ls -1q log* | wc -l
ls -1q will give you one line per file, even if they contain whitespace or special characters such as newlines.
The output is piped to wc -l, which counts the number of lines.
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