mojave man page for llength

llength(n)						       Tcl Built-In Commands							llength(n)

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NAME
       llength - Count the number of elements in a list

SYNOPSIS
       llength list
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DESCRIPTION
       Treats list as a list and returns a decimal string giving the number of elements in it.

EXAMPLES
       The result is the number of elements:
	      % llength {a b c d e}
	      5
	      % llength {a b c}
	      3
	      % llength {}
	      0

       Elements are not guaranteed to be exactly words in a dictionary sense of course, especially when quoting is used:
	      % llength {a b {c d} e}
	      4
	      % llength {a b { } c d e}
	      6

       An empty list is not necessarily an empty string:
	      % set var { }; puts "[string length $var],[llength $var]"
	      1,0

SEE ALSO
       list(n), lappend(n), lindex(n), linsert(n), lsearch(n), lset(n), lsort(n), lrange(n), lreplace(n)

KEYWORDS
       element, list, length

Tcl																	llength(n)