TeknoFiend

//////////////////////////////////////////////////////////////////////
// Proposal for doing in-template (JSX) conditions. This can be done
// with components (e.g. https://www.npmjs.com/package/react-if) but
// I think the cognitive separation of logic & markup is important.
// It feels a little less noisy to me too.
//
// Naming, code-style & even some of the intra-JS semantics could be
// changed but this shows off what's possible. Style-wise I like
// having the `then` (vs not as in the `case` example), and I like
// the inline style used for `elsif` over the stacked style used

TeknoFiend

<%# Making sure a Rails partial's dependencies are represented in the cache keys is a common source %>
<%# of bugs that are hard to debug & often "bad" (revealing priviledged info). %>

<%# One strategy I've used is to cache outside a partial and try to pass the parts of the cache %>
<%# key to the partial as locals. This setup is beneficial because the proximity of the key to %>
<%# the locals makes it easier to realize/remember to update them at the same time. But they can %>
<%# still fall out of sync (also the partial can access `@post` or whatever behind your back). %>

<% cache [ @post, @user.can_edit?, @user.can_delete? ] do %>

TeknoFiend

Keybase proof

I hereby claim:

• I am TeknoFiend on github.
• I am teknofiend (https://keybase.io/teknofiend) on keybase.
• I have a public key whose fingerprint is 940A 1BF8 10CD AC35 6768 B3AD 59F6 7675 F405 FA22

To claim this, I am signing this object:

TeknoFiend

# Define a free function with the same name as a class (returns the class and the args passed to the function, the constructor data)
def javascriptenator( klass )
  Kernel.send( :define_method, klass.name.to_sym ) { |*args| return [klass,args] }
end

# Parameter is the return from the class-named function. Use class name to create object and pass constructor data.
def new( class_and_args )
  class_and_args.first.new( *class_and_args.last )
end

TeknoFiend

Development Guidance

• Don’t repeat yourself
• Control method length
• Be careful how you fix what you don’t understand
  • Frederick P. Brooks