Dictionaries are an association of an unordered collection of key-value pairs. Each value is associated with a unique key, which is a hashable type such as a number or string. We can use the dictionary concept in swift programming language whenever we want to obtain the values based on a key value.
Syntax of Swift Dictionaries:
Following is the syntax of defining a dictionary in the Swift programming language.
Dictionary<Key, Value> ()
Or
[Key: Value] ()
Creating Dictionaries in Swift:
Following are the different ways of creating a dictionary with key-value pairs in the declaration.
// using Dictionary
Var names = Dictonary<String,Int> ()
Names = [“Ajay”: 1, “Mohit”: 2]
print(names)
// it prints [Ajay: 1, Mohit: 2]
