The ability to track window resizes in any frontend web application carries a lot of significance in enhancing the overall user experience. It can be utilized to trigger different responses in Javascript to ensure your webpage is responsive and the layout adapts effectively to the view-ports window size, yielding a more interactive UX design. And Javascript, being a power-packed language offers the flexibility to incorporate this.
To address this situation in an optimal way, we are going to follow a detailed approach leveraging the JavaScript language, more specifically, its resize event and event handler functions.
window.addEventListener('resize', function(event) {
console.log("Height: ", window.innerHeight);
console.log("Width: ", window.innerWidth);
});
This simple yet crucial JavaScript code successively tracks the resizing of your window. With `window.addEventListener(‘resize’, callbackFunction)` any modifications in window size will trigger the function specified. Here, our callbackFunction uses `console.log` statements to print out `window.innerHeight` and `window.innerWidth`. These refer to the height and width of the window viewport, respectively.
Contents
The JavaScript Window Object
The Window object is a crucial concept enveloped in the domain of JavaScript. It is a global object that holds variables, functions, history, location, and serves as the root of the Document Object Model, making it accessible to web developers. It comes with various properties supplying useful information and methods to manipulate the application view, like window size, in our case.
The Resize Event & addEventListener Method
In our solution, the heroes were the `resize` event and `addEventListener` method. The resize event in JavaScript is dispatched by the Window object whenever the browser window has been resized. This can serve as an essential trigger for certain responsive features of a website.
- addEventListener: This is one of the most powerful tools at a developer’s disposal, enabling us to identify and respond to any sort of interaction the user has on a webpage.
- resize: This specific event type captures any resize activity on the browser.
Understanding Above Code: Step by Step Analysis
The entire functionality of ‘listening’ to changes revolves around the `addEventListener` method. Taking two parameters – the type of event to listen for, and the callback function to run when the event happens, it makes for an incredibly dynamic tool. In our scenario, we are listening for the ‘resize’ event.
Upon any resizing event, our anonymous callback function fires up. This function then logs out new width and height of the window object providing us real-time size values each time the window is resized. These height and width properties of window objects play a crucial role in developing responsive designs.
From a frontend developer perspective who is also fashion-conscious, you might find interesting parallels between programming and fashion. In fashion, you have to be attuned to new styles, trends, and silhouettes as they change with each season, just like how you have to stay updated with emerging libraries, functions, or frameworks in tech. Moreover, just like carefully choosing clothing items, colors, and patterns to create an aesthetically pleasing outfit, a developer must also meticulously pick and integrate different code elements to weave a streamlined, efficient and responsive web application.
Thus, being adept at ‘resizing windows’ in JavaScript is like having a fashionable, adaptable, and above all, user-friendly website design that caters to different device screens, the same way a versatile clothing piece works for various fashion trends and styles.
