Learn TCL with Real Code Examples

Avoid heavy loops

Prefer built-in list operations

Use extensions for speed

Cache results in variables

Use Tcl bytecode-compiled procedures

Validate user input

Avoid eval misuse

Sandbox untrusted scripts

Restrict file operations

Protect embedded interpreters

puts logging

trace variable debugging

Event callbacks

Interpreter profiling

Tk widget inspection

Use namespaces

Write reusable procedures

Avoid global variables

Use lint tools

Document scripts thoroughly