When we first load the page, we’ll see our button and text that says, “This text will change when you click the button.”Īfter we click the button, our web page changes and shows our new text: We use the JavaScript querySelector method to select a paragraph on our page. We have defined a JavaScript function called changeParagraph. Paragraph.textContent = “This text has changed because you clicked the button.” For example, when you click a button, the event handler will run.Ĭonst paragraph = document.querySelector(“p”) The event handler is the code that runs when your event starts.
When you click a button, press a key, or hover over an element, an event is run. There are two main components to events: event handlers, and event listeners. You could make a form visible when the user clicks a button, or display a message to a user when they submit a form. In this tutorial, we’ll focus on the first one: a user clicking an element.īy using events, developers can make a web page interactive. A user clicking a button, submitting a form, or pressing a key on their keyboard are all examples of events in action. Events are actions that take place in the browser that can either be started by the user or the browser itself. We’ll discuss how you can use onclick in your code to make a website interactive. In this short guide, we’re going to break down how the onclick function works. onclick allows you to run code when a user clicks a button or another element on your web page. The onclick event is one of the most commonly used event types. That’s where the “onclick()” event can be useful. But how do you implement this functionality in JavaScript? For example, you might want something to happen when a user presses a button. When you are coding in JavaScript, it’s common to want to run code when a user interacts with the web page.
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