NSPredicate

An NSPredicate is a tool used to filter and find specific data within a larger collection, such as searching a list for items that meet certain criteria. Think of it like a set of rules or questions you ask to narrow down results—e.g., "Show me all employees over 30 years old" or "Find emails from a specific sender." It helps efficiently retrieve relevant data by evaluating each item against the defined conditions, making it easier to manage and analyze large datasets in software applications.