Determine type of a variable in Tcl

Question

I\'m looking for a way to find the type of a variable in Tcl. For example if I have the variable $a and I want to know whether it is an integer.

I have been using th

Answer 1

For arrays you want array exists for dicts you want dict exists

for a list I don't think there is a built in way prior to 8.5?, there is this from http://wiki.tcl.tk/440

proc isalist {string} {
  return [expr {0 == [catch {llength $string}]}]
}