Tcl has some particularly distinctive features that often aren't well
known, even among many long-time Tcl developers. Here are a few that
we think everyone should know about!
Take software deployment to a higher level.
Think deployment means "configure && make", or just compiling your scripts
into an executable? Tcl has several technologies, including one called
"Starkits", that let you take application deployment to a whole new level of
power, flexibility and convenience.
The Tcl Virtual File System.
Sure, some other languages have libraries for accessing web or ftp sites,
or looking inside zip files. But how many provide an open ended and
extensible system that allows you to access any such resource using the
same I/O commands you'd use with regular disk files?
Stubs make Tcl Extensions Easy.
Most dynamic languages lets you write extensions to add new features to
the core language (Tcl was built on this capability). But usually, you
have to compile those extensions against the exact version of the language
you're running against, making upgrading painful. With stubs, you can
build compiled extensions that work against multiple versions of Tcl.
Themed, Truly Native User Interfaces.
You may have heard people say that Tk doesn't look right (usually people
running older versions of Tk). But not only does regular Tk look better,
there are many new features that allow you add widget themes to your
application, to get exactly the look you want.
Object Oriented Programming.
Heard that Tcl doesn't do objects? In fact, it's quite the opposite
problem — there are way too many ways to do objects in Tcl.
Find out the real story, and look at some of the different options available.
Event Driven Programming.
One of the things that makes Tcl so powerful is an event-driven I/O model
that permeates everything: files, networking, GUI's and more. This makes
Tcl programming more consistent, without having to rely on more complex
mechanisms or add-on packages like most languages require.