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




NAME

       append - Append to variable


SYNOPSIS

       append varName ?value value value ...?


DESCRIPTION

       Append all of the value arguments to the current value of variable var-
       Name.  If varName does not exist, it is given a value equal to the con-
       catenation  of  all the value arguments.  The result of this command is
       the new value stored in variable varName.   This  command  provides  an
       efficient  way  to build up long variables incrementally.  For example,
       is much more efficient than if $a is long.


EXAMPLE

       Building a string of comma-separated numbers piecemeal using a loop.

       set var 0 for {set i 1} {$i<=10} {incr i} {
           append var "," $i } puts $var # Prints 0,1,2,3,4,5,6,7,8,9,10


SEE ALSO

       append(n)


KEYWORDS

       append, variable



Tcl                                                                  append(n)

tcl 8.6.0 - Generated Mon Jan 7 07:32:01 CST 2013
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