Option, Try, Either for Errors
Implement robust error handling using `Option` for absence of value, `Try` for exceptions, and `Either` for distinct failure/success paths.
Handling Errors Gracefully
In programming, things don't always go as planned. Files might not exist, network requests could fail, or calculations might lead to invalid results.
- How do we write robust code that can handle these situations gracefully?
- Scala provides powerful tools to manage errors and missing values without resorting to `null` or throwing exceptions everywhere.
The Problem with Null
Many languages use null to represent the absence of a value. However, null is a common source of bugs like the dreaded NullPointerException.
Scala discourages the use of null. Instead, it offers types that explicitly state whether a value might be missing, making your code safer and easier to understand.
All lessons in this course
- Immutable Collections Deep Dive
- Functional Operations on Collections
- Option, Try, Either for Errors