There are two terms i.e. Slice and Composite Literal. Slice is a composite data type similar to an array which is used to hold the elements of the same data type. The main difference between array and slice is that slice can vary in size dynamically but not an array.
Composite literals are used to construct the values for arrays, structs, slices, and maps. Each time they are evaluated, it will create new value. They consist of the type of the literal followed by a brace-bound list of elements. (Did you get this point!) Well, after this read you will get to know what is a composite literal and you will be shocked that you know it already !!!!
Let’s see how to create a slice and make the use of composite literal:
[23 56 89 34]
Hope you understand the term what exactly a composite literal. So basically assigning the values or initialization of arrays, slice, etc. are done using composite literals. These are generally used to compose a bunch of values of similar types.