![]() Regardless, this effect is widespread enough that it can now be abused. doing this became "free" from a programming perspective). Depending on the browser, display of images may simply be offloaded to the GPU, which is specialized hardware for doing things like resampling image data (i.e. This happened to make more websites look nicer when resizing images and because the processing power was sufficient to handle the extra load on the CPU. In recent years, browser vendors introduced smooth resizing algorithms into the image presentation core. The end result is that "jaggies" appear along the edges of most GIF images and are particularly noticeable in transparent animated GIFs. A pixel is either fully opaque or fully transparent. Beyond natively supporting 256 colors (there are ways around the 256 color limitation via GIF animation palettes), one of the format's greatest weaknesses is the inability to store semi-transparent data. Regardless, GIF keeps finding ways to come back again and again. MNG (animated PNG) was supposed to be the replacement for animated GIF, but it never took off for a variety of reasons. PNG has largely supplanted GIF for static images. One of the areas it has traditionally been weak in is transparency. It was invented in the late 1980's and is still used on the Internet today for some animations. ![]() GIF is one of the oldest image file formats. Such as the 1-bit alpha channels like those found in GIF images. I then realized that this behavior could be abused when applied to a 1-bit alpha channel. And then I realized that the first image looked a bit anti-aliased, which reminded me that a lot of web browsers will use bicubic scaling to resize larger images. Then I realized that the browser was resizing the image to the smaller size. Today, I was looking at this logo on the PHP website trying to figure out why it was so distracting:Īnd then, after digging around for a bit, I realized that the image was larger than it looked: And your head will hurt thinking about what I've done to the Internet. Here's how: class M圜omponent extends React.Are you ready to return to the 1980's? Uh.me neither. We can do this using the componentDidMount lifecycle method. Step 4: Call fetchData When Component Mountsįinally, we want to start fetching data as soon as our component is mounted. Then, we display the loading.gif whenever isLoading is true. As soon as we start fetching, we set isLoading to true. In this code, we're using the fetchData function to fetch data from an API. Import loadingGif from './loading.gif' // make sure the path is correctĬlass M圜omponent extends React.Component ) // finish loading Take a look at this code snippet: import React from 'react' Now, let's import it into your React component. Once you've downloaded your gif, place it in the src directory of your project. Step 2: Import Loading.gif Into Your React Component For the purpose of this tutorial, let's say we've chosen a simple spinning wheel gif and named it loading.gif. Choose one that fits your app's style and download it. You can find an array of pre-made loading gifs at websites like loading.io or. The first step is to choose or create your loading.gif. Step 1: Choose or Create Your Loading.gif Now, let's dive into how you can add this to your ReactJS application. It's like a signal that tells the users, "Hang on, we're fetching your data." Just like a timetable at a bus stop, it makes the waiting process less frustrating and more transparent. Loading.gif is a simple animated image that gives users a visual cue that something is happening in the background. This is where loading.gif comes into play. Likewise, when a user interacts with your application and has to wait for a response without any visual feedback, it can lead to a poor user experience. Without a clear indication of when the bus will arrive, your wait can be frustrating and confusing. ![]() To give you an analogy, imagine you're waiting for a bus. What is Loading.gif and Why Would You Use It?
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