![]() ![]() It is always a good idea to provide visual indications to users. Take the element x as an example, the event handler can be written as x.onclick = event =>, useCapture). ![]() In JavaScript, it can be created as an on function for the specified element.In an HTML element, it can be handled by the on attribute.The element or elements can also be retrieved by CSS selector(s):Īfter JavaScript retrieves the element, x, it can be accessed to change attributes, such as x.innerHTML = ‘New Value’, x.lor = ‘blue’, and etc. It needs to be converted to an array for accessing array APIs. Other APIs returns a collection of all elements in the document with the specified feature. The document.getElementById() method returns the element that has the id attribute with the specified value. Or it can be retrieved from a number of APIs: Access the elements inside the script tagĪ target element can be retrieved from the event handler parameter. Generally speaking, it is recommended to put all scripts in the head section for easier management. When it is in the body section, put it at the bottom of the body section in order not to delay the HTML content loading. Put the script tag in the head section if it is executed when it is called, or when an event is triggered. Access the elements inside the script tag.Ī script tag can be added to the head section or the body section.There are 4 steps to add the interactive part: ![]()
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