Explain the concept of capacity and length in slices in Go.
- Capacity and length both represent the maximum number of elements a slice can hold.
- Capacity is the number of elements in the slice and length is the maximum number of elements it can hold.
- Length is the number of elements in the slice and capacity is the maximum number of elements it can hold.
- Length represents the maximum number of elements a slice can hold and capacity represents the number of elements in the slice.
In Go, the length of a slice is the number of elements it contains, and the capacity of a slice is the number of elements in the underlying array, counting from the first element in the slice. The length of a slice can change during execution, but the capacity of a slice remains fixed. Understanding the difference between length and capacity is crucial for efficient memory management in Go programs.
Loading...
Related Quiz
- What is a recommended practice for naming test functions in Go?
- You're writing unit tests for a function that should return an error under certain conditions. How would you test this behavior in Go?
- How would you design error handling in a RESTful API to ensure it provides clear and useful error messages?
- What are some common pitfalls to avoid when working with JSON in Go?
- What is the purpose of channels in Go?