The copy() Function
Explore how the Go copy function works for copying elements between slices and arrays. Understand key behaviors, such as how copy handles source and destination slices of different sizes, and how it affects the contents without resizing slices. This lesson helps you write efficient and correct Go code when manipulating slices with the copy function.
We'll cover the following...
About the copy() function
Go offers the copy() function for copying an existing array to a slice or an existing slice to another slice. However, the use of copy() can be tricky because the destination slice is not automatically expanded if the source slice is bigger than the destination slice. Additionally, if the destination slice is bigger than the source slice, then copy() does not empty the elements from the destination slice that did not get ...