JavaScript Basics: Scopes, Objects & Arrays | Part - 9 | Tamil

In this video, we explore essential JavaScript concepts, focusing on scopes, objects, and arrays to enhance your code execution. Whether you're a beginner or looking to refine your JavaScript skills, this session will equip you with the knowledge to write efficient and structured programs.

👉 What You'll Learn:

📝 JavaScript Scopes:
🔹 Global scope – Variables accessible throughout the script.
🔹 Local scope – Variables limited to a function or block.
🔹 Block scope – Variables defined within {} using let or const.
🔹 Lexical scope – Inner functions can access variables from their parent functions.

📝 Objects and Methods:
🔹 Creating objects – Define structured data using key-value pairs.
🔹 Object methods – Functions stored as object properties for dynamic behavior.
🔹 this keyword – Reference the object that calls a method.
🔹 Common object methods:

📝 Arrays and Methods:
🔹 Array manipulation – Adding, removing, and updating elements.
🔹 Iterating arrays – Efficient looping techniques.
🔹 Common array methods:

push() – Add elements to the end.
pop() – Remove the last element.
shift() – Remove the first element.
unshift() – Add elements to the beginning.
concat() – Merge two or more arrays.
map() – Create a new array by applying a function to each element.
filter() – Create a new array with elements that meet a condition.
forEach() – Execute a function for each array element.
find() – Get the first element that meets a condition.
includes() – Check if an element exists in an array.
slice() – Extract a portion of an array.
splice() – Add or remove elements from an array.

💡 By the end of this session, you'll have a solid understanding of JavaScript scopes, objects, and arrays, allowing you to write optimized and maintainable code like a pro! 🚀

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