How to count the Number of Occurrences of Specified Element in the Array in Swift - Step by Step Examples

How to count the Number of Occurrences of Specified Element in the Array in Swift ?

Answer

To count the number of occurrences of a specified element in an array in Swift, you can use methods like filter or loops to iterate through the array and count each occurrence.

✐ Examples

1 Count Occurrences of Element 30 in Integer Array using filter

In this example,

We create an integer array named numbers with values 10, 20, 30, 40, 30, 50.
We use the filter method to filter elements equal to 30.
We count the filtered elements using the count property of the filtered array.
The count will represent the number of occurrences of element 30.

Swift Program

let numbers = [10, 20, 30, 40, 30, 50]
let count = numbers.filter({ $0 == 30 }).count
print("Number of occurrences of element 30: \(count)")

Output

Number of occurrences of element 30: 2

2 Count Occurrences of Element 'banana' in String Array using loop

In this example,

We create a string array named fruits with values 'apple', 'banana', 'cherry', 'banana'.
We initialize a counter variable count to 0 to store the count of occurrences.
We use a loop to iterate through the array and increment count each time element 'banana' is found.
After the loop, count will contain the total count of occurrences of element 'banana'.

Swift Program

let fruits = ["apple", "banana", "cherry", "banana"]
var count = 0
for fruit in fruits {
    if fruit == "banana" {
        count += 1
    }
}
print("Number of occurrences of element 'banana': \(count)")

Output

Number of occurrences of element 'banana': 2

Summary

In this tutorial, we learned How to count the Number of Occurrences of Specified Element in the Array in Swift language with well detailed examples.

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