Question

The following sets an NSString to the StringValue of a textfield. Then, the strings are compared in General_combinations

- (IBAction)SendAction:(id)sender
{
    NSString *MyLoggerCommand = [CommandBox stringValue];
    [CommandBox setStringValue:@""];
    [[[MyLogger textStorage] mutableString] appendString: MyLoggerCommand];
    [self General_Combinations];
}

- (void)General_Combinations
{
    NSLog(@"General Combinations called..");
    if([MyLoggerCommand isEqualToString:@"this"])
    {
        NSLog(@"Matched..");
    }

}

However, no matter what the strings are, they are never equal.
the snippet

[CommandBox setStringValue:@""];

shouldn’t affect anything because the NSString is set first before the actual box is cleared.

Answer 1

The problem is you’re comparing MyLoggerCommand when the second method doesn’t know what that is. Try this code:

-(IBAction)SendAction:(id)sender {

    NSString *myLoggerCommand = [CommandBox stringValue];
    [[[MyLogger textStorage] mutableString] appendString: myLoggerCommand];
    [self General_Combinations:myLoggerCommand];
    [CommandBox setStringValue:@""];  
}

-(void)General_Combinations:(NSString *)aString {

    NSLog(@"General Combinations called..");
    if([aString isEqualToString:@"this"])
    {
        NSLog(@"Matched..");
    }
 }