marko/src/runtime/helpers/repeatable.js

UI Components + streaming, async, high performance, HTML templating for Node.js and the browser.

module.exports = function repeatable(a, b) {
  if (a) {
    if (Array.isArray(a)) {
      a.push(b);
      return a;
    }

    return [a, b];
  }

  return b;
};