How do I pass multiple parameters in Objective-C?

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You need to delimit each parameter name with a “:” at the very least. Technically the name is optional, but it is recommended for readability. So you could write:

- (NSMutableArray*)getBusStops:(NSString*)busStop :(NSTimeInterval*)timeInterval;

or what you suggested:

- (NSMutableArray*)getBusStops:(NSString*)busStop forTime:(NSTimeInterval*)timeInterval;

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