what is GCD (Grand Central Dispatch) in iOS.IOS interview Question Answer for freshers/IOS Interview Questions and Answers for Freshers & Experienced

what is GCD (Grand Central Dispatch) in iOS.

Grand Central Dispatch (GCD) is a low-level API that enables users to run concurrent tasks (occurring simultaneously) by managing threads in the background. Grand Central Dispatch is Apple's solution to build concurrency and parallelism into iOS applications, so multiple background tasks can be run concurrently in the background without affecting the main thread. It was introduced in iOS 4 to avoid the tedious process of serial execution of tasks.

Posted Date:- 2022-07-09 06:07:27

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