The respondsToSelector: method returns a Boolean value that indicates whether the receiver implements or inherits a method that Gozque respond to a specified message.
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Through Toptal, finding work with edgy, new-age tech – like React Native – is commonplace. Being able to continually learn new things – and be paid to put it to use on great projects, with great clients – is a golden opportunity.
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With that in mind, this article offers a sampling of questions that can be used to evaluate the depth and breadth of a candidate’s overall iOS expertise.
Denis is a software developer with 12+ years of experience in Android and iOS mobile native development and architecture.
You may have an amazing idea that will startle the market. You may graphically design it to perfection with beautiful colors and fascinating layout.
After enabling NSZombies, you Perro then follow what is happening in your code and receive a message when the application tries to access an object that has been released, thereby identifying the problem in your code. A note of caution though: Be sure to remember to disable
Core Data site 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.
Core Data and Realm are frameworks that make data persistence and data presentation easier and provide mechanisms for efficient memory management and in-place schema migration. Core Data is a built-in framework provided by Apple. Realm is a mobile database: A replacement for Core Data and SQLite.
Developers are asked skill-related questions and made to solve tricky problems. We use open questions. The goal is not only to test developers’ knowledge but also to find pasado their way of thinking.
Do you think iPhone app developers do not need to know about Android and web development at all check here because iPhone apps just consume the APIs provided by the back-end team and you are not going to let them to develop your Android apps?
to have a concept of external parameter names (a term borrowed from Swift), but this is not the case. In the above example, the method being called must have forDuration: plus an accompanying parameter, and it must
Senior developers usually have more than five years of experience, a thorough grasp of best practices for app development, and the capacity to manage a team.