How to remove OnClick events with Javascript

JavaScript is an essential tool for web developers, enabling the creation of interactive and dynamic website components. One of its key features is the ability to assign and manipulate onclick events, which trigger specific functions when a user clicks on a particular element on a web page.  

However, there might be some situations where you need to remove these events, either temporarily or permanently, to alter the behaviour of your web page.  

In this quick tutorial, we’ll guide you through the steps to remove onclick events in JavaScript, helping you gain more control over your web page’s interactivity. 

There are various ways to remove an onclick event handler using JavaScript, we will look at a couple of working examples, breaking down each snippet and you can even try it out yourself.  

Here is some example HTML coding: 

<button id="myButton" onclick="alert('Hello world!')">Click Me</button> 

The above will create a button which will alert the user with a message ‘Hello World!’ after being clicked.  

Give it a try on JSFiddle where you can test HTML, CSS and JavaScript coding. In the bottom right square, you will see a clickable HTML button and will show the above message after clicking this.  

Here is some JavaScript, this will retrieve the HTML button using the ID ‘mybutton’ and then remove the click functionality. 

var button = document.getElementById("myButton"); 
button.onclick = null; 

By setting button.onclick to null, we remove the onclick event handler from the button. When the event handler is null, clicking the button will not trigger any action.  

Give it a try here If you try clicking the button now, the above message will not display.  

Here is another JavaScript example, this time we’re using removeAttribute. 

var button = document.getElementById("myButton");  

The code retrieves the button element with the ID ‘myButton’ and then removes the ‘onclick’ attribute from it which results in the button being unclickable.  

Give it a try here  

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