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What is the difference between underscore and self (i.e self.xx and _xx) ?
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Answer / Son Dev Jatav
In Objective-C, 'self' refers to the current object instance. When using 'self', you access instance variables with a dot notation like 'self.variable'. An underscore '_' is often used as an ivar (instance variable) prefix in Objective-C classes for consistency with C coding style. However, it has no special meaning in Objective-C and can be replaced with self or any other valid name.
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