Counting the occurrences of a substring in string in Swift

Learn, how to count the total number of occurrences of a substring in a string with swift.

Counting the occurrences

We can count the number of occurrences of a substring in the string using the components(separatedBy:) instance method in Swift.

Here is an example, that counts the number of times substring hi is present in the following string:

import Foundation

let msg = "hi, Welcome to party, hi Swift hi"
let result =  msg.components(separatedBy:"hi")

print(result.count-1)

Output:

3