Deprecation: w‐config - marko-js/marko GitHub Wiki

getWidgetConfig and the w-config attribute are deprecated. Marko now provides this.input in the onMount method, which has a similar effect.

init is renamed to onMount, which better describes when it’s called in a component’s lifecycle. getWidgetConfig is no longer necessary (or even called), and w-config is ignored because we can access this.input inside onMount.

// index.js
init(config) {
  $(this.el).dataTable(config);
}

// template.marko
<table w-bind w-config={
  paginate: input.paginate,
  scrollY: input.scrollY
}>

…become:

// component.js
onMount() {
  $(this.el).dataTable({
    paginate: this.input.paginate,
    scrollY: this.input.scrollY
  });
}