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How to get the hash value for a set in Swift
Theodore Kelechukwu OnyejiakuOverview
A hash is an integer value that is unique and used to represent other values such as a set, integer, arrays, strings, etc. In the Set collection, two equal sets can have the same hash value. In order to get the hash value of a Set class, we use the hashValue property.
Note: Hash values are different for every execution.
Syntax
set.hashValue
Syntax for getting the hash value of a Set collection in Swift
Return value
The value returned is a hash value, which is an integer.
Code example
// create some sets let evenNumbers1 : Set = [10, 2, 6, 8, 4] let evenNumbers2 : Set = [10, 2, 6, 8, 4] let oddNumbers : Set = [11, 5, 7, 3, 9] let first_names : Set = ["john", "jane", "henry", "mark"] // get the hash values print(evenNumbers1.hashValue) print(evenNumbers2.hashValue) print(oddNumbers.hashValue) print(first_names.hashValue)
Get hash values for Set instances in Swift
Explanation
- Lines 2–5: We create some instances of the
Setcollection and initialize them with some elements. - Lines 8–11: We get the hash values of the sets and print them to the console.
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Theodore Kelechukwu OnyejiakuRELATED COURSES
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