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  • NSLog

    Command use to log a specified value to the output window.

    NSString

    Defines a specific variable as a string object.

    NSArray

    Defines a specific variable to be an array or items.

    NSDictionary

    Defines a specific variable to be a dictionary of values.

    NSNumber

    Defines a variable to be a number value.

    int

    Defines a specific variable as an integer value.

    float

    Defines a specific variable as a floating point value.

    double

    Defines a variable as a double precision value.

    BOOL

    Defines a variable as a boolean operator.

    //

    In line comment

    /*

    Multi-line comment

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