Jan 13, 2020 · Being able to access and manipulate HTML elements with precision and dexterity is key to using Javascript. There are quite a few ways to target HTML elements using vanilla Javascript. We’ll be looking at the most common ones.

Select Object. The Select object represents an HTML <select> element. Access a Select Object. You can access a <select> element by using getElementById():

Jul 24, 2022 · Given a select element that looks like this: <select id="ddlViewBy"> <option value="1">test1</option> <option value="2" selected="selected">test2</option> <option value="3">test3</option> </select> Running this code: var e = document.getElementById("ddlViewBy"); var value = e.value; var text = e.options[e.selectedIndex].text; Results in:

Apr 5, 2024 · Below are the approaches to select DOM elements in JavaScript: This method selects a single element by its unique ID attribute. Example: Output: This method selects elements based on their class attribute. It returns a collection of elements with the specified class name. document.getElementsByClassName('class') Example: Output:

Get the first <p> element: Get the first element with class="example": More examples below. The querySelector() method returns the first element that matches a CSS selector. To return all matches (not only the first), use the querySelectorAll() instead.

To do so, you have to find the elements first. There are several ways to do this: The easiest way to find an HTML element in the DOM, is by using the element id. This example finds the element with id="intro": If the element is found, the method will …

First, select the <button> and <select> elements using the querySelector() method. Then, attach a click event listener to the button and show the selected index using the alert() method when the button is clicked.

Jun 6, 2012 · JavaScript Code: /** * Empty Select Box * @param eid Element ID * @param value text * @param text text * @author Neeraj.Singh */ function emptySelectBoxById(eid, value, text) { document.getElementById(eid).innerHTML = "<option value='" + value + "'>" + text + "</option>"; } /** * Reset Select Box * @param eid Element ID */ function ...

Jun 14, 2020 · The HTML element is the document.documentElement. var whatIWantedToSelect = document.getElementsByName('html')[0]; getElementsByName matches elements by their name attribute. You are looking for getElementsByTagName.

Selecting Elements by ID. You can select an element based on its unique ID with the getElementById() method. This is the easiest way to find an HTML element in the DOM tree. The following example selects and highlight an element having the ID attribute id="mark".