bs.get is used to get a property of an object.
For example, say you created a div element:
type element;
[@bs.scope "document"] [@bs.val] external createElement: string => element = "";
let div = createElement("div");How can we access its properties, e.g. scrollTop?
Doing this doesn't work:
let top = div.scrollTop; // Error: The record field scrollTop can't be found.That's what bs.get is for:
[@bs.get] external scrollTop: element => float = "";
let top = scrollTop(div);which compiles to:
var top = div.scrollTop;Note how we defined scrollTop as a function that takes an element, and BS compiled it to element.scrollTop.