nbollepalli / cljs-bootcamp

ClojureScript Boot Camp at PROS

Now that we are using ClojureScript for three products at PROS, we are wanting to introduce developers to the language through a series of 2-hour bootcamp sessions. (Initiated by Chris Oakman)

Bootcamp 1

During this session, Chris introduced the language's features and benefits in a high-level presentation. We also covered its syntax.

• Why ClojureScript? (slides)
• Why ClojureScript? (video of March 2014 presentation)
• ClojureScript Syntax

Bootcamp 2

During this session, we walked through creating a simple project. We learned about:

• Creating a base minimal project with lein new mies bootcamp2
• Creating files and namespaces
• Requiring namespaces and referencing their symbols
• Creating a function
• String concatentation
• Creating local "bindings" with the let-block (immutable values)
• Creating global "bindings" with def (immutable values)
• Creating an atom when we want mutation.
• Watching all transactions on an atom with add-watch
• Using lein repl in order to experiment with the language
• Quick intro to functional patterns with map filter and reduce
• Mathematical functions like (+ 1 2 3) and (> 4 5 6)
• The threading macros -> and ->> for making nested expressions read more naturally.

Bootcamp 3

During this session, we walked through creating a new project. We learned about:

• Creating a base project with a browser REPL lein new mies-brepl bootcamp3
• Starting the bREPL with lein repl and then (brepl).
• JS Interop with (.foo bar) (.-foo bar) and (foo.).
• How to include new library dependencies
• The case for using hiccups for HTML templating.
• How to build markup strings with data structures.
• How to use functions to dynamically generate markup strings.
• Generating an unordered list of items.
• Maintaining state of highlighted item in an atom. (keeping state in your atom, not the DOM)