Basic understanding of functions in Javascript | Mastering of Web development

Summary
This video introduces the basic concept of functions in JavaScript, explaining their purpose, how to define and call them, and the scope of variables within functions.
Highlights
- 🤖 *Functions are blocks of code that perform specific tasks.* They are reusable, meaning you can define them once and call them multiple times.
- 📑 *Defining a function uses the `function` keyword, followed by the function name, parentheses, and curly braces containing the code to be executed.* The function name follows the same naming conventions as variables.
- 📞 *To execute a function, you call it by using its name followed by parentheses.*
- 🔒 *Variables declared within a function are scoped to that function and cannot be accessed outside of it.*
- 🌎 *Variables declared globally, outside of any function, can be accessed by any function within the script.*
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