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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