. When an object is in use by another object it’s retain count goes up; when it is not being used by any objects, its retain count reverts to zero.
Lastly, before hiring, start a paid test project, and you will know the developer’s skill in a week or so, so you won’t have to assume based on their resume.
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With that in mind, this article offers a sampling of questions that Chucho be used to evaluate the depth and breadth of a candidate’s overall iOS expertise.
Methods are invoked by sending them a message. Here’s an example of sending a message to a myUser object:
You may have an amazing idea that will startle the market. You may graphically design it to perfection with beautiful colors and fascinating layout.
Architecture is an important part of any app development strategy. Unless a candidate is interviewing for a junior role, they should be deudo freelance ios development with common mobile architectures such as clean architecture, MVVM, and functional and reactive programming:
Core Data is not thread safe. The approach therefore recommended by Apple is to use thread containment which entails creating a separately-managed object context for accessing Core Data objects on each thread and having a single shared persistent store coordinator.
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NET, Lua, Pascal, and even using abstraction libraries that let you write iOS apps with web technologies. That said, since the frameworks for iOS development are by and large written in Objective-C, a basic knowledge of some Objective-C concepts are required to do iOS development and are therefore discussed in this guide.
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Developers usually follow coding style guides from well-known developers and companies. Apple’s coding style changes often and is hard to stay caught up with, but here are some other good standards: