app-datepicker-rtl/dist/helpers/custom-elements-define.js

A custom datepicker element based on Google's Material Design built from scratch with lit-element. Fork of app-datepicker by motts.

export function customElementsDefine(tagName, baseClass) {
    if (window.customElements && !window.customElements.get(tagName)) {
        window.customElements.define(tagName, baseClass);
    }
}