JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Functions - I / 029

The video introduces functions as a crucial programming concept, highlighting their role in improving code usability and efficiency. Functions are blocks of code that perform tasks and can be reused multiple times, avoiding repetition. Practical examples, such as addition and certificate generation, demonstrate their application. The video emphasizes the benefits of reusability and efficiency, providing a basic example of an addition function. It concludes with a discussion on advanced applications and a preview of the next lecture.

What is a function and how does it improve code usability?

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Describe a practical example of how functions can be used in an educational website.

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Explain the advantages of using functions in programming.

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What is the significance of parameters and arguments in functions?

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How can functions help avoid repetition in code?

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What are the benefits of reusability in functions?

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In what ways do functions contribute to code efficiency?

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