session = ActionDispatch::Integration::Session.new(Rails.application) response = session.post("/mypath", my_params: "go_here")

I used the above to test what happens to the user if a POST happens in another session (via WebSockets), so a form wouldn't cut it.

An extensible plugin architecture allows for customizing your workflow or even making Yarn a package manager for non-JavaScript projects.

For me the diagrams make it easier to talk about what the tests do without getting bogged down by how they do it.

Fallback values aren't used to fix the browser compatibility. If the browser doesn't support CSS custom Properties, the fallback value won't help.

Tell you why tree-shaking fails, if it does.

What it doesn't do

Note that these are not hyperlinks; these URIs are used for identification. This is a machine-readable way to say “this is HTML”. In particular, software does not usually need to fetch these resources, and certainly does not need to fetch the same one over and over!

JSX is an XML-like syntax extension to EcmaScript (https://facebook.github.io/jsx/). It is not a language or runtime.

The carefully crafted Medium story can give the appearance that- at the nadir of your professional life- you are above it all, you are concerned about others, and you are a soulful human being moving on to an even more lucrative future.

When is your site not built with the Jamstack? Any project that relies on a tight coupling between client and server is not built with the Jamstack.

In natural languages, some apparent tautologies may have non-tautological meanings in practice. In English, "it is what it is" is used to mean 'there is no way of changing it'.[1] In Tamil, vantaalum varuvaan literally means 'if he comes, he will come', but really means 'he just may come'.[2]

The term "ad hoc" in this context is not intended to be pejorative; it refers simply to the fact that this type of polymorphism is not a fundamental feature of the type system.

Reason is not a new language; it's a new syntax and toolchain powered by the battle-tested language, OCaml.