Arrays

CSS supports arrays with up to 16 dimensions. Since a var may hold any text or number, an array can take some functionality of structs:

const adr[3][2] = {
  { 1, 'fred' },
  { 2, "john" },
  { 3, 'jane' }
};

Local arrays (e.g. declared within a function) are allocated at runtime and may have variable indexes. This is a unique feature of CSS you won't find in C/C++:

var x = 12;
var aa[++x];  // aa holds 13 elements
var bb[x*2];  // bb holds 26 elements

Global arrays must be declared with constant indexes. This restriction is imposed since global var's and const's are allocated at compile time.