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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), lindex(3tcl), linsert(3tcl), lsearch(3tcl), lset(3tcl), lsort(3tcl), lrange(3tcl), lreplace(3tcl)
KEYWORDS¶
element, list, length
Tcl |