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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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    What is two-way binding in Vue.js?

    Asked on Wednesday, Sep 17, 2025

    Two-way binding in Vue.js allows you to synchronize data between the model and the view, so changes in the UI automatically update the data and vice versa. This is commonly achieved using the "v-model…

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    How do directives work in Vue.js?

    Asked on Tuesday, Sep 16, 2025

    In Vue.js, directives are special tokens in the markup that tell the library to do something to a DOM element. They are prefixed with "v-" and provide special reactive behavior to the DOM. This text i…

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    How do I create a Vue component?

    Asked on Monday, Sep 15, 2025

    To create a Vue component, you define a JavaScript object with specific properties and then register it. Here's a basic example of how to create and register a Vue component. Vue.component('my-compone…

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    What are lifecycle methods in React components?

    Asked on Sunday, Sep 14, 2025

    In React, lifecycle methods are special methods that allow you to hook into specific points in a component's life, such as when it mounts, updates, or unmounts. These methods are primarily used in cla…

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