What is best for concatenating values in QString: arg(...) or +?

[wysota]

There is also a third method:

#include <QStringBuilder>
 
QString string = "abc" % QString::number(currFile) % ... ;

#include <QStringBuilder>

QString string = "abc" % QString::number(currFile) % ... ;

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This solution is fastest yet less powerful than when using arg() since the latter is better when using tr() for translations.