Arrays are variables that can contain a number of strings, and each one can be looked up by its index and key. Unlike arrays in other languages, array keys in Tcl are strings, not integers, and array members can contain strings of differing lengths. You'll start this module learning about the basics of arrays, and go on to learn some of the wider uses and extra power that's provided by their somewhat unusual specification, taught by example.

This topic is presented on public course Tcl Basics

ar1	First use of arrays
ar2	Checking if an array key exists
ar3	looping though an array with array get
arr_log	Access log counter using arrays
arr_log_2	Selecting elements from an array - glob matching to keys
arr_log_3	Passing arrays in and out of procs - using upvar
ifinder	search for icon references; list icon names
ifinder2	search for icon references and count them
stfinal	final exercise - array of dialling codes
topskill	setting up an array of lists, sorting, listing out elements

Arrays in Tcl
A small group learns Tcl on a private course