code: function ready(period, filter) {
  						var tasty = this;
  						tasty.hooks.set(
  							filter,
  							function(result) {
  								return tasty.utils.thenable(
  									// eslint-disable-next-line no-undef
  									document.readyState === 'complete' ?
  										result :
  										function(resolve) {
  											// eslint-disable-next-line no-undef
  											tasty.dom.on(window, 'load', resolve);
  										}
  								).then(function() {
  									return period ?
  										tasty.utils.delay(period, result) :
  										result;
  								});
  							},
  							period ?
  								'ready:window ' + period :
  								'ready:window'
  						);
  					}
docs: istanbul ignore next