What is the difference between a tuple and an array in Swift?

 




In Swift, a tuple and an array are both used to store a collection of values, but they have some important differences:

  1. Syntax: A tuple uses parentheses () to define its elements, while an array uses square brackets [].


  2. Type: An array holds values of the same type, whereas a tuple can hold values of different types.


  3. Mutability: An array is mutable, which means that its values can be added, removed, or modified after it's been created. A tuple, on the other hand, is immutable, which means that its values cannot be changed once it's been created.


  4. Indexing: Both arrays and tuples can be accessed by an index, but arrays are zero-based, while tuples are one-based.


  5. Use case: Arrays are typically used when you need to store a collection of values of the same type and you need the ability to add, remove, or modify the values. Tuples, on the other hand, are typically used when you need to group a small number of values together and you don't need to add, remove, or modify the values.

For example, you can use an array to store a list of names:





And use a tuple to store a coordinate:




A tuple and an array are both used to store a collection of values in Swift, but they have different syntax, type, mutability, indexing, and use case. An array is used when you need to store a collection of values of the same type and you need to add, remove, or modify the values, whereas a tuple is used when you need to group a small number of values together and you don't need to add, remove, or modify the values.






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