JavaScript 在其他不同事件中执行Event.observer（使用原型）

Posted 2021-05-20

$A(document.getElementsByClassName('text', $('main-form'))).each(function(poElement){
	Event.observe(poElement, 'change', function(e){
		// this event only fires while tabbing after changing content
		Element.addClassName(poElement, 'changed');
	}, false);
	
	Event.observe(poElement, 'keypress', function(e){
		var cKeyCode = e.keyCode || e.which;
		
		if (cKeyCode == Event.KEY_RETURN){
			// but now will fire also while pressing return key
			Event.observers.findAll(function(poEventObserver){
				return poEventObserver[0] == poElement && poEventObserver[1] == "change";
			})[0][2]();
		}
	}, false);
});