Get current date and time in a well-kwnown format

How to get the current date and time printed out in standard formats?
Using NSDateFormatter is quite a joke, so this is a powerful function.


/** Get the current date and time in any of the standard formats.

 Parameter "format" must be one of these values:
 0: "dd/MM/yyyy - HH:mm"
 1: "dd_MM_yyyy_HH_mm_ss"
 2: "yyyy-MM-dd"
 3: "HH:mm:ss"
 4: "dd/MM/yyyy - HH:mm:ss"

 @param format Type of format and therefore also the result type.
 @return Returns a string representing the current date and time using selected format.

 */
+ (NSString *)currentDateAndTimeUsingFormatMode:(NSInteger)format {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    switch (format) {
        case 0:
            [formatter setDateFormat:@"dd/MM/yyyy - HH:mm"];
            break;
        case 1:
            [formatter setDateFormat:@"dd_MM_yyyy_HH_mm_ss"];
            break;
        case 2:
            [formatter setDateFormat:@"yyyy-MM-dd"];
            break;
        case 3:
            [formatter setDateFormat:@"HH:mm:ss"];
            break;
        case 4:
            [formatter setDateFormat:@"dd/MM/yyyy - HH:mm:ss"];
            break;
        default:
            [formatter setDateFormat:@"dd/MM/yyyy - HH:mm"];
            break;
    }

    return [formatter stringFromDate:[NSDate date]];
}


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