Reduce Fatal Index Out of Range Errors With An Unfailable Subscript

Daily Coding Tip 025

Image by Pexels from Pixabay

Here’s an idea for preventing the errors that happen when you pass an array the wrong index. You may have tried to use optional binding like if let or guard let with an this way. You’d think this would give you a closure in which the value at that index is available, or skip over the closure if there was no value at that inde…