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llength(3tcl) Tcl Built-In Commands llength(3tcl)


NAME

llength - Count the number of elements in a list

SYNOPSIS

llength list


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(3tcl), lappend(3tcl), lassign(3tcl), lindex(3tcl), linsert(3tcl), lmap(3tcl), lpop(3tcl), lrange(3tcl), lremove(3tcl), lrepeat(3tcl), lreplace(3tcl), lreverse(3tcl), lsearch(3tcl), lset(3tcl), lsort(3tcl)

KEYWORDS

element, list, length

Tcl