| | | |
Tcl8.5.6/Tk8.5.6 Documentation > TclCmd > llengthTcl/Tk Applications | Tcl Commands | Tk Commands | Tcl Library | Tk LibraryNAMEllength - Count the number of elements in a listSYNOPSISllength listDESCRIPTIONTreats list as a list and returns a decimal string giving the number of elements in it.EXAMPLESThe 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 ALSOlist, lappend, lindex, linsert, lsearch, lset, lsort, lrange, lreplaceKEYWORDSelement, list, lengthCopyright © 1995-1997 Roger E. Critchlow Jr.
Copyright © 1993 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 2001 Kevin B. Kenny <kennykb(at)acm.org>. All rights reserved.
|