var is redundant when combined with out and a discard pattern CS-R1067
Anti-pattern
Major
Autofix The out keyword is used to indicate that the parameter is initialized by the method to which it is being passed. But, when a discard pattern (_) is used with out, it indicates that the variable is unused and is only a placeholder.
Therefore, in such cases, the keyword var becomes redundant and can be dropped.
Bad Practice
dict.TryGetValue(key, out var _);
Recommended
dict.TryGetValue(key, out _);