What is the reason for the event object not being included in the window object's prototype?

I'm finding it difficult to wrap my head around the element and event objects in my studies. I know that JavaScript has a global window object, as well as four other built-in objects: Math, String, Array, and Date. Is it accurate to say that the document object is a property of the global window object? What about the document Element Object and Event Object - from what I can see, the event object is not present on the Window prototype. How exactly does the event object come into play? Is it inherited when an event occurs?

Answer №1

As per the information found on the w3schools website, JavaScript can utilize HTML DOM events to register various event handlers on elements within an HTML document. Events are commonly paired with functions, ensuring that the function is only executed once the specified event occurs.

If you refer to the code snippet I provided, you may gain a deeper understanding of how events function. By clicking the button in the code, you will see details related to the "click" or MouseEvent event displayed in the console.

To illustrate this further, I created a div element where clicking anywhere within it triggers an alert showing the position of your click, utilizing the "clientX" and "clientY" properties of the 'click' event.

function clickFunc(inp) {
    console.log(inp);
    
}

function mousePlace(inp2) {
    posX = inp2.clientX;
    posY = inp2.clientY;
    alert("x:"+posX+"y:"+posY);
}
.bg-red {
    background-color: rgb(200,15,10);
    height: 400px;
    width: 80%;
    margin: 2px auto;
}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>events</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
   
   <div>
       <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Veritatis, illum, reiciendis! Perspiciatis corporis, iste dolore excepturi ipsa animi. Saepe assumenda quae, expedita facilis rerum provident vero illum reprehenderit consequatur suscipit illo. Qui atque ab sit tempore, laboriosam, officiis quisquam, cum harum libero rem architecto ipsam molestias accusantium quasi delectus? Quidem.</p>
       
       <button onclick="clickFunc(event)">click me</button>
   </div>
   
   <div class="bg-red" onclick="mousePlace(event)">
       
   </div>
    
    
<script src="script.js"></script>    
</body>
</html>

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Unable to Embed Tweets resulting in 403 Error (Forbidden)

While working on embedding some Tweets on my webpage, I encountered the following error message: GET https://cdn.api.twitter.com/1/friendships/exists.json?user_a=19463349&screen_name_b=mrland_news&callback=twttr.setFriendshipExists 403 (Forbidden) ...

The rule 'react-hooks/exhaustive-deps' does not have a defined definition

I received an eslint error message after inserting // eslint-disable-next-line react-hooks/exhaustive-deps into my code. 8:14 error Rule 'react-hooks/exhaustive-deps' definition not found I tried to resolve this issue by referring to this p ...

Ensuring the input box value is up-to-date with jQuery validation

Currently, I am utilizing jQuery v1.9.1 in combination with jQuery-validate v1.9 to validate a user-provided id using the remote method. The main objective is to verify if this id exists within a database. However, there seems to be an issue with the json ...

Despite receiving a 404 fetch response, the page still exists

I have encountered an issue with my Fetch code (POST) where the response shows status: 404 even though the URL returns a JSON when accessed through the browser. Surprisingly, changing the URL to https://httpbin.org/post brings back normal data. Furthermore ...

AngularJS meta tags featuring dynamic asynchronous content

I am currently facing a challenge with my angular application that is running within a .net application. My main goal is to implement meta tags for SEO and other purposes. However, the issue I'm encountering is that I cannot determine the page title u ...

Guide on implementing a progress bar for file uploads with JavaScript and AJAX request

I am looking to implement a progress bar in my file uploader. Below is the ajax call I have set up for both file upload and progress tracking. $(function() { $('button[type=button]').click(function(e) { e.preventDefault(); ...

Save the content of the textbox on the webpage automatically, no need for a webservice or settimeout

Is there a way to save the text entered in a textbox on a webpage automatically, without relying on a webservice or the settimeout function? Any help would be greatly appreciated.Thank you in advance. ...

Tips for accessing the HTML content enclosed within a specific HTML tag using Python with Selenium

I am trying to extract the source code of an HTML document that is embedded within an <iframe> tag generated by JavaScript. The HTML contents within this <iframe> tag appears as #document, which expands to reveal a full HTML document starting w ...

Bidirectional Data Binding Using Meteor and React

When using Meteor, the getMeteorData() method is preferred over getInitialState(). But how can we achieve binding, especially with regards to a user's surname in their profile? ... getMeteorData() { return { u = Meteor.user() } }, componentRen ...

What causes the disparity in the functionality of getServerSideProps between index.js and [id].js in NextJS?

Exploring NextJS and React as part of my e-commerce site development journey has been exciting. However, I encountered a roadblock when trying to connect to an external database that requires real-time updates, making getStaticProps unsuitable for my needs ...

The functionality of wp_script_is in WordPress seems to be malfunctioning when it comes to

I need to load a certain file only after a specific script has finished loading. Wordpress offers a useful method called 'wp_script_is' for detecting if a script has loaded or not. When I use the jquery handle with "done", it functions as expecte ...

The collision of two OnClick events results in the disruption of the proper execution of the first event

I have been working on integrating a new jQuery toggle function into existing code. The goal is to show/hide the form_fields_con div below with an onclick event. The issue arises because the form_fields_con div also contains AJAX functionality triggered b ...

Navigating the grid layout in Material UI can be tricky to

I'm struggling to grasp the concept of the grid system in material UI. Within my grid container, I have two grid items that I want to be centered and occupy the entire width. The button element appears centered, but the typography element does not. A ...

Combine two events in jQuery using the AND operator

Can I create a condition where two events are bound by an AND logic operator, requiring both to be active in order for a function to be called? Let's say you have something like this: foobar.bind("foo AND bar", barfunc); function barfunc(e) { al ...

Connect the Vue component to the Vue instance

I am currently working with a Vue component that looks like this: Vue.component('number-input', { props: {}, template: `<textarea class="handsontableInput subtxt area-custom text-center text-bold" v-model="displayValue" @blur="isInput ...

Animate the CSS with a delay using styled-components

Is it possible to delay the opacity to zero when a certain condition is met? The loader bar is controlled using JavaScript, but can this delay be achieved using CSS alone? const Wrap = styled.div` background: #ddd; width: 100px; height: 10px; bord ...

AngularJS - how to dynamically delete a directive from an element

Looking for a way to dynamically add or remove directives from compiled and linked elements? I have a page with numerous inputs and want to disable all of them if a specific flag is set. The conventional method using jQuery's element.prop('disabl ...

How can JavaScript be used to apply CSS formatting to text that appears as a new HTML element?

It's unclear if the question accurately reflects what I want to achieve. If I have a form that fades out and is then determined whether to display again through a cookie, can the confirmation message be styled using CSS? For example, I would like to ...

Incorporating a series of image links into a Three.js project with the addition of a

My latest project involves creating a reflection cube with randomly changing images on each side every time the site is reloaded. Here is the code I have written: var imgAr = [ 'sources/instagram2/image1.jpg', 'sources/instagram2/image2.jp ...

Avoid altering the Vuex store state directly without using mutation handlers in VueJS

I am currently working on developing a listenAuth function that monitors the "onAuthStateChanged" event in firebase to inform the vuex store whenever a user logs in or out. From what I can gather, I am only updating state.authData using the mutation handle ...