We are then checking the complete property of the img to see if it has loaded yet.
#Neat image download full version code
In the JavaScript code we are selecting the blurred-img div and then selecting the img within that div. This is a lot of code so I will break it down step by step. All I had to do was run the below code on the command line within the directory containing the image I wanted to generate the placeholder image for. I will be using ffmpeg to generate the placeholder images for this article since it is the most flexible option and can be automated easily. There are many ways to do this, such as, using a service like BlurHash, manually resizing the image in a tool like Figma, or automatically using a tool like ffmpeg. To create a blurry placeholder image you just need to generate a super low resolution version of the image. These are the blurry placeholder images that are shown until the full image is downloaded and is the first step to creating this advanced lazy loading effect. You may have noticed when looking at the dev tools that there were a bunch of really small images being downloaded.
#Neat image download full version how to
This is not an ideal user experience which is why the rest of this article will show you how to take advantage of lazy loading to show a blurred placeholder image until the full image is downloaded. The browser will automatically determine when to download the image based on how close the image is to being on the screen. The loading attribute can be set to lazy to enable lazy loading on the image. Basic Lazy LoadingĪs I mentioned at the start of this article, lazy loading images is as simple as adding a single attribute to your image tag. Images are one of, if not, the largest asset your user will download so even if they have a fast internet connection, lazy loading images can still make a huge difference in the load time of your site. This also isn't just for people with super slow internet connection either. If you have a fast internet speed or you only ever view sites with small, well optimized images, you may not see the advantage to lazy loading images since you can download all the images almost instantly, but for everyone else lazy loaded images are a game changer. This is especially useful for sites with a lot of images since you can save a lot of bandwidth by only downloading the images that the user will actually see. This is a great way to speed up your site since you are only downloading the images that the user will actually see. In the case of images, this means that the image will not be downloaded until the user scrolls to the point where the image is visible on the screen. Lazy loading is a technique used to defer the loading of an asset until it is needed. In this article I will be covering everything you need to know about lazy loading as well as how to create this advanced lazy loading effect. However, there are a few advanced techniques you can use to make your lazy loading look just like the image above with blurred placeholders and a smooth transition from the placeholder to the full image. Lazy loading images is one of the easiest ways to speed up the load times of your site since the most basic form of lazy loading only requires one line of code.
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