Js image resize library11/3/2023 While in a React context we used a library to do the heavy lifting for us, knowing the HTML API is the only prerequisites for this approach. Otherwise, you can continue following this tutorial and build the demo application step by step. You can clone the GitHub repository that supports this article by launching the following command: git clone Follow this step-by-step tutorial to achieve the following result on CodeSandbox: Resizing Images Using Let’s see how to resize an image with Vanilla JavaScript. As you can imagine, both of these consequences fall on end-users – we want to avoid this. As we have previously explained you might also want to compress such images. Uploading large photos is time-consuming and may cost money in bandwidth. That is because the quality of the images and their file sizes have been increasing for years.įor example, when letting users upload an image, you should always consider resizing it before uploading it. Resizing an image has become increasingly important. Thanks to the HTML element, this is a reasonably easy task to accomplish. This will make the image take up 100% of the width or height of its parent, while maintaining the proper aspect ratio.In this article, you will learn how to resize an image in JavaScript, without using any external library. You can also set the width and height to a percentage, in which case the image will take up that much space in its parent container.įinally, you can set the width or height to auto and set the max-width or max-height to 100% and resize the parent container. The first is to set the width and height parameters on the class to a specified width in pixels. There are a few ways to resize an image in CSS. Pipe the output using the ImageObject.write() function, which allows you to write the new image to a file. You can then call ImageObject.resize() and pass width and height parameters. Jimp reads the image object into memory from a URL. Node includes a library called Jimp, which can be used to resize images directly in Node. Rather than spending the time to do this, you could host the image in an S3 bucket and then use either serverless AWS image resizing services or a third-party image processing API like AbstractAPI to resize the image. It is possible to create your own image processor, but it is time-consuming and difficult. These days, the simplest way to resize an image in code is to send the image to an external library or API for processing. That is, we need to let the API know what should be the width and height of the resized version. In order to tell the API how we want the original image source to be resized, we need to include the resizing logic. Inside the handler, we use Axios to send a POST request to the API, passing a JSON options object with our API Key and the photo URL. You should replace this with your Abstract API key. In the apiKey variable, we've put a placeholder string. Here, we've imported the Axios HTTP client, which we will use to send our request to the API, and assigned the Image API URL to a variable for clarity and ease of use. Throw new Error('Caught in resizeImage: ', error) Const response = await axios.get(apiUrl, )
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