A '''code style''' is a set of rules and directions on how source code should be formatted and structured. With Tcl in particular a code style may concern

   * Procedure names
       ** `lowerCameCase`, `nocaseatall` or `lower-case-with-dashes`?
       ** verb (e.g., `[set]`) or noun (e.g., `::[http]::data`)?
   * Variable names
   * Indentation (typically tabs vs. 4 spaces)
   * [Class] names
       ** `lower` ([Snit]) or CamelCase (common with [TclOO])
   * Curly brace and [Square bracket indentation style%|%square bracket] placement
   * `namespace eval ::ns { proc hi ... }` or `namespace eval ::ns {}; proc ns::hi ... }`


<<categories>>Code Style