Function define

esm/index.js:62–94

(selector, definition)

export const get = selector => (config[selector] || attributes).o;

export const define = (selector, definition) => {
  if (-1 < query.indexOf(selector))
    throw new Error('duplicated: ' + selector);
  flush();
  const listeners = [];
  const retype = create(null);
  for (let k = keys(definition), i = 0, {length} = k; i < length; i++) {
    const key = k[i];
    if (/^on/.test(key) && !/Options$/.test(key)) {
      const options = definition[key + 'Options'] || false;
      const lower = key.toLowerCase();
      let type = lower.slice(2);
      listeners.push({t: type, o: options});
      retype[type] = key;
      if (lower !== key) {
        type = key.slice(2, 3).toLowerCase() + key.slice(3);
        retype[type] = key;
        listeners.push({t: type, o: options});
      }
    }
  }
  if (listeners.length) {
    definition.handleEvent = function (event) {
      this[retype[event.type]](event);
    };
  }
  query.push(selector);
  config[selector] = {m: new WeakMap, l: listeners, o: definition};
  parse(document.querySelectorAll(selector));
  whenDefined(selector);
  if (!lazy.has(selector))
    defined[selector]._();
};

export const defineAsync = (selector, callback, _) => {
  lazy.add(selector);