116: Tuples

 In Solidity, tuples can be used to return multiple data types from a function. A tuple is an ordered collection of values, similar to a list or an array. However, tuples are immutable, meaning that once they are created, their values cannot be changed.

Using tuples in Solidity can be useful when a function needs to return multiple pieces of information. For example, a function that calculates the average of an array might return both the average and the total sum of the array elements.

To declare a tuple in Solidity, use parentheses and separate the values with commas. To return a tuple from a function, list the values in the return statement, separated by commas.

Overall, tuples in Solidity provide a flexible and efficient way to return multiple values from a single function.