lappend(n) - phpMan

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



_________________________________________________________________________________________________

NAME
       lappend - Append list elements onto a variable

SYNOPSIS
       lappend varName ?value value value ...?
_________________________________________________________________


DESCRIPTION
       This  command treats the variable given by varName as a list and appends each of the value
       arguments to that list as a separate element, with spaces between  elements.   If  varName
       does  not exist, it is created as a list with elements given by the value arguments.  Lap-
       pend is similar to append except that the values are appended as list elements rather than
       raw  text.  This command provides a relatively efficient way to build up large lists.  For
       example, "lappend a $b" is much more efficient than "set a [concat $a [list $b]]" when  $a
       is long.

EXAMPLE
       Using lappend to build up a list of numbers.
              % set var 1
              1
              % lappend var 2
              1 2
              % lappend var 3 4 5
              1 2 3 4 5


SEE ALSO
       list(n), lindex(n), linsert(n), llength(n), lset(n), lsort(n), lrange(n)


KEYWORDS
       append, element, list, variable



Tcl                                                                                    lappend(n)

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