Web Development with ReasonML

Binding to Existing Functions

There’s a more satisfying way to use the functions in the JavaScript Date object: write a binding that tells ReasonML how it should communicate with them. Before writing your own bindings, you may want to visit the Reason Package index at https://redex.github.io to see if the needed bindings already exist. You can also try doing an npm search for bs- as a prefix to the package name whose bindings you want.

Although there’s already a set of bindings for Date,^[32] it’s good for us to derive some of them ourselves so we’re ready when we come across a library that doesn’t have bindings. Among the things we’ll do from ReasonML:

• Create a new Date object.

• Call class-level methods such as now, which returns the number ...