TASK (11-14)

script.js

          "TASK-11"

console.log('A' - 1);              // NaN
console.log('A' + 1);              // "A1"
console.log(2 + '2' + '2');        // "222"
console.log('hello' + 'world' + 89); // "helloworld89"
console.log('hello' - 'world' + 89); // NaN
console.log('hello' + 78);         // "hello78"
console.log('78' - 90 + '2');      // "-122"
console.log(2 - '2' + 90);         // 90
console.log(89 - '90' / 2);        // 44
console.log((true == false) > 2);


         " TASK -12"

// 1. extract first five letters
let str1 = " gfuh ieiuei ";
console.log(str1.trim().slice(0, 5));   // "gfuh "

// 2. get length and make uppercase
let str2 = "hduej dij";
console.log(str2.length);               // 9
console.log(str2.toUpperCase());        // "HDUEJ DIJ"

// 3. lowercase and trim
let str3 = " biji jdo  ";
console.log(str3.toLowerCase().trim()); // "biji jdo"

// 4. replace specified word
let sentence = "I love JS, JS is fun";
console.log(sentence.replace("JS", "JavaScript")); // "I love JavaScript, JS is fun"

// 5. random implicit coercion statement
console.log(89 + "hello" + 90 / 9);    // "89hello10"


        " TASK-13"



// 1. create an object for animal, car
const animal = {
  name: "Dog",
  legs: 4,
  sound: "Bark"
};

const car = {
  brand: "Tesla",
  model: "Model 3",
  year: 2024
};

// 2. find the duplicate in a string (use array)
const str = "helloworld";
const chars = str.split("");
const duplicates = chars.filter((ch, i, arr) => arr.indexOf(ch) !== i);
console.log([...new Set(duplicates)]);

// 3. reverse a string (use array method)
const original = "javascript";
const reversed = original.split("").reverse().join("");
console.log(reversed); // "tpircsavaj"

// 4. find the highest and lowest value in array
const nums = [5, 12, 3, 45, 7];
const highest = Math.max(...nums);
const lowest = Math.min(...nums);
console.log(highest, lowest); // 45 3

// 5. sorting of an array
const sortedAsc = [...nums].sort((a, b) => a - b);
const sortedDesc = [...nums].sort((a, b) => b - a);
console.log(sortedAsc);
console.log(sortedDesc);

// 6. display first 3 elements in an array in UI (basic example)
const arr = ["one", "two", "three", "four", "five"];
const firstThree = arr.slice(0, 3);
console.log(firstThree); // ["one","two","three"]

// 7. remove 4th (index) element and add 2 elements there
let arr2 = [10, 20, 30, 40, 50, 60];
arr2.splice(4, 1, 70, 80); // remove element at index 4 and add 70, 80
console.log(arr2); // [10,20,30,40,70,80,60]



     "  TASK-14"



// 1. parameterized method/function to multiply 3 numbers
function multiplyThree(a, b, c) {
  return a * b * c;
}
console.log(multiplyThree(2, 3, 4)); // 24

// 2. parameterized method to divide 2 numbers
function divideTwo(a, b) {
  return a / b;
}
console.log(divideTwo(10, 2)); // 5

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TASK (11-14)

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