Async and Defer are two boolean attributes for script tag. Both async and defer increase the speed and performance of web apps by eliminating render-blocking JavaScript. With reference to the above image, consider we simply write <script> without as...

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Nikki Goel
Software Engineer | Blogger | Flutter Developer
Great article. 👌
I always use defer, didn't know async was an option. Reading this, defer seems a safer option to me.