Function defineAsync

cjs/index.js:99–113

(selector, callback, _)

exports.define = define;

const defineAsync = (selector, callback, _) => {
  lazy.add(selector);
  define(selector, {
    init() {
      if (lazy.has(selector)) {
        lazy.delete(selector);
        callback().then(({default: definition}) => {
          query.splice(query.indexOf(selector), 1);
          drop(document.querySelectorAll(selector));
          (_ || define)(selector, definition);
        });
      }
    }
  });
};
exports.defineAsync = defineAsync;

const upgrade = element => {