Returns the first index where the specified value appears in the collection.
- Xcode 10.0+
- Swift Standard Library
An element to search for in the collection.
The first index where
element is found. If
element is not found in the collection, returns
first to find the position of a particular element in a collection, you can use it to access the element by subscripting. This example shows how you can modify one of the names in an array of students.
Complexity: O(n), where n is the length of the collection.