What is the difference between Go's slice literals and slice values?
In Go, a slice is a dynamically sized, flexible view of an underlying array. A slice literal is a shorthand way of initializing a slice using a sequence of values enclosed in square brackets []. Here's an example:
s := []int{1, 2, 3, 4, 5}
This creates a slice **s**
with 5 elements, initialized with the values 1 through 5. This is a slice literal.
A slice value, on the other hand, is a variable that refers to a slice. Here's an example:
a := [5]int{1, 2, 3, 4, 5}
s := a[1:3]
This creates an array **a**
with 5 elements, initialized with the values 1 through 5, and then creates a slice **s**
that refers to the elements of **a**
from index 1 to index 2 (inclusive).
In summary, slice literals are a way to initialize a slice with values, while slice values are a way to refer to a subset of an underlying array.