Skip to content

append ​

Append values to a variable.

Syntax ​

tcl
append varName ?value ...?

Parameters ​

  • varName: Name of the variable to append to
  • value: One or more values to concatenate

Description ​

Concatenates all value arguments to the end of the variable varName. If the variable doesn't exist, it is created as an empty string before appending. Returns the new value.

Examples ​

Building a string ​

Output

Creating variable via append ​

Output

Building output in a loop ​

Output

See Also ​