July 27, 2018
Chapter 8 : Swift Tuples
As per definition of english word Tuple – A data structure consisting of multiple parts.
So tuples are used to group multiple values in a single value.Its of any type.
Syntax : var Tuple_name = (Tuple_value1, Tuple_value2, Tuple_value1….to any number of values)
For Example : 1) Single value tuple var errorType = (404) we can access the values of tuple using the index numbers that start from 0 like we did in array. print(“The code is\(errorType.0)”) Output - 404
2) Double value tuple var errorType = (404,”Page not found”) print(“The code is\(errorType.0)”) Output - 404 print(“The code is\(errorType.1)”) Output - Page not found
3) Triple value tuple var errorType = (404,”Page not found”,”www.9to5ios.com”) print(“The code is\(errorType.0)”) Output - 404 print(“The code is\(errorType.1)”) Output - Page not found print(“The code is\(errorType.2)”) Output - www.9to5ios.com
Use of Tuple :
Tuples are used if we need to return multiple values from a method or function and used for temporary values not for complex data.
For example of type (Int , “String”)