Arrays and/or Lists are very common in programming languages. In Qlik scripting there are two ways to go about creating an array of sorts.

The first way is storing a list in a variable:

arrays

The second way is by using a field:

arrays

Source

Result:

arrays

The main use of these will be for iterating over their values. There are not any native list/array operations. However, you can get around that utilizing other Qlik functions. For example: concatenate, where not exists, reinitializing the variable, etc…