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Discover clear, example-based answers to real JavaScript challenges. From functions, arrays, and DOM manipulation to ES6+ syntax and async programming, every response is written to help you understand how and why things work. Whether you’re building interactive sites or learning core logic, these Q&As make JavaScript easier and more powerful.

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    How can I prevent event bubbling while still using event delegation in my JavaScript application?

    Asked on Tuesday, Nov 18, 2025

    Event bubbling can be prevented by using the "stopPropagation" method on the event object. This allows you to use event delegation while stopping the event from bubbling up to parent elements. documen…

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    Why isn't tree shaking removing unused code from my ES6 module bundle in Webpack?

    Asked on Monday, Nov 17, 2025

    Tree shaking is a technique used to eliminate dead code in JavaScript modules. If it's not working in your Webpack setup, it might be due to improper configuration or usage of non-ES6 module syntax. H…

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    How can I convert a Blob to a base64 string in JavaScript for uploading to a server?

    Asked on Sunday, Nov 16, 2025

    To convert a Blob to a base64 string in JavaScript, you can use the FileReader API. This allows you to read the Blob's data as a base64-encoded string, which is useful for uploading to a server. funct…

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    How can I ensure my custom web component updates correctly when its attributes change in different browsers?

    Asked on Saturday, Nov 15, 2025

    To ensure your custom web component updates correctly when its attributes change, you should use the "attributeChangedCallback" lifecycle method. This method is part of the Web Components API and is s…

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