Скачать или смотреть How to Convert an SVG String to an img Source Attribute in React

Learn how to easily convert an SVG string into an image source attribute using JavaScript and React. Follow our step-by-step guide for achieving this seamlessly!
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Converting SVG String to Image Source in React

If you've ever faced challenges in rendering an SVG string as an image in React, you're not alone. Many developers encounter similar scenarios where they need to convert incoming SVG data into a format that can be displayed within an <img> tag. In this guide, we'll walk you through how to transform an SVG string into an img source attribute that can be used as a prop for child components in your application.

Understanding the Problem

You might have a situation in your React app where you receive an SVG string, and you want to display it as an image. For instance, you could receive the SVG data as a payload in your application:

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The challenge lies in converting this string into a format that can be displayed as an image (i.e., in an img tag). Let's dive into the solution using JavaScript and React.

Step-by-Step Solution

Step 1: Create a Blob from the SVG String

The first step is to convert the SVG string into a Blob object. This allows us to generate an object URL that can be used as a source for an image.

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Step 2: Read the Blob as Data URL

Next, we utilize the FileReader API to read the Blob and convert it into a Data URL. This will allow us to set the src of an image to this URL.

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Step 3: Handle the Load Event

Once the Blob has been successfully read, we specify what to do when the load event occurs. We create a new image, set its source to the result of the reader, and pass it as a prop to the child component.

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Complete Example

Here’s how everything fits together:

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Notes

It’s important to handle events properly and make sure that the Blob is read completely before trying to use the resulting image source.

Ensure that your childComponent is set up to receive and render the prop correctly for the image to display properly.

Conclusion

Converting an SVG string to an image source in React might seem daunting at first, but with the right approach, it becomes a straightforward task. By utilizing the Blob and FileReader APIs, you can effectively handle SVG data and pass it as a prop to your components. If you encounter any issues or have further questions, feel free to reach out for assistance! Happy coding!