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When NOT to use yield (return) [duplicate]
...eason
// (a new state machine needs to be generated)
public IEnumerable<string> GetKeys()
{
foreach(string key in _someDictionary.Keys)
yield return key;
}
// DO this
public IEnumerable<string> GetKeys()
{
return _someDictionary.Keys;
}
Avoid using yield return when yo...
Turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the
...a();
[OperationContract]
[FaultContract(typeof(ServiceData))]
string GetCCDBdataasXMLstring();
//[OperationContract]
//string GetData(int value);
//[OperationContract]
//CompositeType GetDataUsingDataContract(CompositeType composite);
// TODO: Add your service op...
What are the differences between Generics in C# and Java… and Templates in C++? [closed]
... either hard-coding the actual class in, or using interfaces. For example:
string addNames<T>( T first, T second ) { return first.Name() + second.Name(); }
That code won't compile in C# or Java, because it doesn't know that the type T actually provides a method called Name(). You have to tell...
What is the proper way to re-throw an exception in C#? [duplicate]
...or, but allows you to put more context, such as an object ID, a connection string, stuff like that. Often my exception reporting tool will have 5 chained exceptions to report, each reporting more detail.
share
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...
Removing path and extension from filename in powershell
I have a series of strings which are full paths to files. I'd like to save just the filename, without the file extension and the leading path. So from this:
...
What happens if you call erase() on a map element while iterating from begin to end?
...ng erase. At this point it is too late and is already invalidated.
map<string, SerialdMsg::SerialFunction_t>::iterator pm_it = port_map.begin();
while(pm_it != port_map.end())
{
if (pm_it->second == delete_this_id)
{
port_map.erase(pm_it++); // Use iterator.
...
if, elif, else statement issues in Bash
...s a fixed version:
#!/bin/bash
if [ "$seconds" -eq 0 ]; then
timezone_string="Z"
elif [ "$seconds" -gt 0 ]; then
timezone_string=$(printf "%02d:%02d" $((seconds/3600)) $(((seconds / 60) % 60)))
else
echo "Unknown parameter"
fi
...
How to detect which one of the defined font was used in a web page?
...ty reliable way. Basically, an element is set to use a specific font and a string is set to that element. If the font set for the element does not exist, it takes the font of the parent element. So, what they do is measure the width of the rendered string. If it matches what they expected for the...
PHP Sort Array By SubArray Value
...optionNumber'] is an integer. Use @St. John Johnson's solution if they are strings.
In PHP ≥7.0, use the spaceship operator <=> instead of subtraction to prevent overflow/truncation problems.
usort($array, function ($a, $b) {
return $a['optionNumber'] <=> $b['optionNumber'];
})...
How do you pass multiple enum values in C#?
...vate static void AddEntryToList(DaysOfWeek days, DaysOfWeek match, List<string> dayList, string entryText) {
if ((days& match) != 0) {
dayList.Add(entryText);
}
}
internal static string[] EnumToArray(DaysOfWeek days) {
Li...