Rexx Programming/How to Rexx/array

The rexx scripting language supports associative containers.

What is an array?

An array is a variable containing several elements, and provides a convenient way of grouping a lot of values under a single variable name. An array is a bit like pigeon hole compartments with multiple storage places.

An array can hold multiple scalar values

An array contains sets of scalar values called elements. A variable that hold an array is called an array variable and can hold any number of elements and may be sparse or empty.

Arrays can be multidimensional

In rexx it is possible to use multidimensional arrays.

An array can be sparse

In rexx, an array can be sparse. This means that not every array position has to have a value or be initialized. There can be empty slots or positions within the array that do not contain data elements.