beginner.html

<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <h1>hello world </h1>
    <!-- <p id="demo"></p> -->
    <button onclick="myFun()">hello</button>
  </body>
  <!-- <script>
    function greet(name) {
      console.log("Hello," + name + "!");
    }
    greet("harry");
    greet("Alice");
    greet("Bob");
    greet("Harry");
  </script> -->
  <!-- <script>// use button and p#demo mandatory
    let count=0;
    function myFun(){
        // console.log(count++)
        document.getElementById("demo").innerHTML=count++;
    }
  </script> -->

  <!-- <script>
    var num=1;

    if (num%2==1) {
        console.log("the Numer is odd")
    }
    else{
        console.log("the numer is even")
    }
  </script> -->

  <!-- <script>
    var grade=89;
    if (grade>100) {
        console.log("not valid")
    } else if(90<grade) {
        console.log("A")
    }
    else if(80<grade){
        console.log("B")
    }

    //more more.......
  </script> -->
  <!-- <script>
    function calculatePower(base,exponent){
        let answer = (base**exponent);
        console.log(answer);
    }
    calculatePower(2,3);
  </script> -->
  <!-- <script>
    function concatination(first, second) {
        let result=String(first)+String(second);
        console.log(`The Concatination of two Argument is  ${first} concat ${second} = ${result} `);
    }
    concatination(1, 4);
  </script> -->

  <!-- <script>
    //use button in this for myfun click event

    function myFun() {
        var number = prompt("Enter Numer:");
      if (number > 0) {
        console.log("the number is possitive");
      } else if (number < 0) {
        console.log("the number is negative");
      } else if(number==0){
        console.log("the Number is Zero");
      }
    }
  </script> -->

  <!-- <script>
    let obj = {
      name: "MR_Vijapura",
      age: 35,
    };

    function discount() {
      if (obj.age > 50) {
        console.log(`${obj.name}, Sorry Sir, no discount available`);
      } else if (obj.age > 40) {
        console.log(`${obj.name}Sir ,you got 40% Discount`);    
      } else if (obj.age > 30) {
        console.log(`${obj.name}Sir ,you got 30% Discount`);
      } else if (obj.age > 20) {
        console.log(`${obj.name}Sir ,you got 20% Discount`);
      } else if (obj.age > 10) {
        console.log(`${obj.name}Sir ,you got 10% Discount`);
      }
    }
    discount()
  </script> -->

  <!-- <script>
    let likesChocolate = false;
    let likesVanilla = false;

    function myFun() {
      if (likesChocolate || likesVanilla)  {
        console.log("Here's Your Ice Cream");
      }else {
        console.log("Sorry, we don't have a flavor for you.");
      }
    }
  </script> -->

  <!-- <script>
    let itemInStock=0,isSubscribed=1;
    function myFun(){
        if (itemInStock==true && isSubscribed==true ) {
             console.log("You Can Purchase Item! perfectly")   
        } else if(itemInStock==true && isSubscribed==false){
            console.log("Please Subscribe First!")
        }else if(itemInStock==false && isSubscribed==true){
            console.log("Item Not in Stock")
        }
        else{
            console.log("you haven't Subscribe and sry item not available")
        }
    }
  </script> -->

  <!-- <script>
    let isAdmin=false,isEditor=true,isModerator=false;
    if (isAdmin || isEditor || isModerator) {
        console.log("Access Granted")
    }
    else{
        console.log("Access Denied")
    }
  </script> -->

  <!-- <script>
    let day = 1;
    switch (day) {
      case 1:
        console.log("Monday");
        break;

      case 2:
        console.log("tuesday");
        break;
      case 3:
        console.log("wednesday");
        break;
      case 4:
        console.log("thursday");
        break;
      case 5:
        console.log("friday");
        break;
      case 6:
        console.log("Saturday");
        break;
      case 7:
        console.log("Sunday");
        break;
    }
  </script> -->

  <!-- <script>
    let grade = "C";
    switch (grade) {
      case "A":
        console.log("Excellent");
        break;
      case "B":
        console.log("Good");
        break;
      case "C":
        console.log("Satisfactory");
        break;
      case "D":
        console.log("Needs Impoovment");
        break;
      case "E":
        console.log("You are at low level");
        break;
        default:
            console.log("Fail")
            break;
    }
  </script> -->

  <!-- <script>
    var latter = prompt("Enter Only One Character:");

    switch (latter) {
      case "a":
      case "e":
      case "o":
      case "i":
      case "u":
        console.log(`${latter} is Vowel`);
        break;

      default:
        console.log(`${latter} Not Vowels`);
        break;
    }
  </script> -->

  <!-- <script>
    var month = 101;

    switch (month) {
      case 12:
      case 1:
      case 2:
        console.log("winter");
        break;

      case 3:
      case 4:
      case 5:
        console.log("Spring");
        break;

      case 6:
      case 7:
      case 8:
        console.log("Summer");
        break;

      case 9:
      case 10:
      case 11:
        console.log("Autumn");
        break;

      default:
        console.log("Month Not Found")
        break;
    }
  </script> -->

  <script>
    function isTruthy(value) {
      if (value) {
        console.log(`${JSON.stringify(value)} ➝ true`);
      } else {
        console.log(`${JSON.stringify(value)} ➝ false`);
      }
    }

    // Test with various values
    isTruthy(true); // true
    isTruthy(false); // false
    isTruthy(1); // true
    isTruthy(0); // false
    isTruthy("hello"); // true
    isTruthy(""); // false
    isTruthy(null); // false
    isTruthy(undefined); // false
    isTruthy([]); // true
    isTruthy({}); // true
    isTruthy(NaN); // false
    isTruthy(" "); // true (non-empty string with space)
  </script>
</html>