A terrific illustration of delegation would be the UITableView object that is often employed when a desk is rendered on the monitor. The UITableView employs two different delegates:

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UITableDataSource: Utilized to retrieve facts concerning how each cell in the desk should be rendered, what number of rows there are actually, if rows is often edited or moved, etc.

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Christina can be a senior QA engineer with experience in take a look at automation, test management, and manual screening for web and mobile apps. She has made test automation frameworks from the bottom up applying Selenium WebDriver in many projects in addition to automating API screening utilizing Relaxation-confident and Postman.

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a method (from its superclass) by sending respondsToSelector: to the article utilizing the Tremendous key phrase. Sending respondsToSelector: to Tremendous is equivalent to sending it to self. As a substitute, you must use the instancesRespondToSelector: strategy on the object’s superclass, one example is: