What is the right way to check for a null string in Objective-C?

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梦毁少年i
梦毁少年i 2020-11-27 09:26

I was using this in my iPhone app

if (title == nil) {
    // do something
}

but it throws some exception, and the console shows that the ti

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  •  半阙折子戏
    2020-11-27 10:02

    For string:

    + (BOOL) checkStringIsNotEmpty:(NSString*)string {
    if (string == nil || string.length == 0) return NO;
    return YES;
    

    }

    Refer the picture below:

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