1. Hello World

• Write Hello World using:
  • console.log("Hello World")
  • alert("Hello World")

2. Basic Output Practice

• Task: Write any 3 things using both console.log() and alert() — print each one separately.

3. What is a Variable?

• A variable is a named container used to store data.
• Use let to declare and assign variables in JavaScript.
• Variables can be:
  • Declared and assigned at the same time.
  • Declared first and assigned later (only with let).

4. Variables and Assignment

• Task 1:

  Declare three variables: admin, name, and host.

  Assign the value "Ram" to name.

  Copy the value from name to admin.

  Copy the value from admin to host.

  Finally:

  • alert the value of admin
  • console.log the values of name and host.

5. About var

• var is the old way to declare variables in JavaScript.
• We don’t use var anymore in modern JavaScript; prefer let and const.

6. Changing Variable Values

• Variables declared with let can have their values changed as many times as needed.