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  1. JavaScript is a versatile language used for creating dynamic, interactive web applications. It can manipulate HTML, handle events, perform calculations, and interact with APIs. Below are some practical examples covering variables, functions, DOM manipulation, and events.

    Example 1: Variables and Basic Operations

    // Declaring variables
    let a = 10;
    let b = 5;

    // Arithmetic operation
    let sum = a + b;
    console.log("Sum:", sum); // Output: Sum: 15
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    This demonstrates variable declaration using let and performing arithmetic operations.

    Example 2: Functions

    // Function to convert Celsius to Fahrenheit
    function celsiusToFahrenheit(celsius) {
    return (celsius * 9/5) + 32;
    }

    console.log(celsiusToFahrenheit(25)); // Output: 77
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    Functions in JavaScript can take parameters and return values, making them reusable for different inputs.

    Example 3: DOM Manipulation

    // Change text content of an element
    document.getElementById("demo").innerHTML = "Hello JavaScript!";
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    This modifies the HTML element with id="demo" dynamically.

    Example 4: Event Handling

  1. JavaScript Examples - Programiz

      1. JavaScript Program To Print Hello World.
      2. JavaScript Program to Add Two Numbers.
      3. JavaScript Program to Find the Square Root.
      4. JavaScript Program to Calculate the Area of a Triangle.
      5. JavaScript Program to Swap Two Variables.
  2. JavaScript Examples - Tutorial Republic

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