🟨 JavaScript Practice Answer– Part 4 Arrays

JavaScript Practice Questions – Part 4 (Answers)

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🔹 Answer 41 – Create an Array

let numbers = [10, 20, 30, 40, 50];

console.log(numbers);

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🔹 Answer 42 – Array Length

let fruits = ["Apple", "Banana", "Orange"];

console.log(fruits.length);

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🔹 Answer 43 – Access Array Element

let nums = [5, 15, 25, 35, 45];

console.log("First Element =", nums[0]);

console.log("Last Element =", nums[nums.length - 1]);

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🔹 Answer 44 – Loop Through Array

let values = [2, 4, 6, 8, 10];

for (let i = 0; i < values.length; i++) {

    console.log(values[i]);

}

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🔹 Answer 45 – Sum of Array Elements

let arr = [10, 20, 30, 40];

let sum = 0;

for (let i = 0; i < arr.length; i++) {

    sum += arr[i];

}

console.log("Sum =", sum);

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🔹 Answer 46 – Find Largest Number

let nums = [12, 45, 7, 89, 23];

let largest = nums[0];

for (let i = 1; i < nums.length; i++) {

    if (nums[i] > largest) {

        largest = nums[i];

    }

}

console.log("Largest Number =", largest);

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🔹 Answer 47 – Find Smallest Number

let nums = [12, 45, 7, 89, 23];

let smallest = nums[0];

for (let i = 1; i < nums.length; i++) {

    if (nums[i] < smallest) {

        smallest = nums[i];

    }

}

console.log("Smallest Number =", smallest);

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🔹 Answer 48 – Count Even Numbers

let nums = [1, 2, 3, 4, 5, 6];

let count = 0;

for (let i = 0; i < nums.length; i++) {

    if (nums[i] % 2 === 0) {

        count++;

    }

}

console.log("Even Numbers Count =", count);

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🔹 Answer 49 – Reverse an Array

let nums = [10, 20, 30, 40];

nums.reverse();

console.log(nums);

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🔹 Answer 50 – Check Element Exists

let nums = [5, 10, 15, 20];

let value = 15;

let found = false;

for (let i = 0; i < nums.length; i++) {

    if (nums[i] === value) {

        found = true;

        break;

    }

}

if (found) {

    console.log("Value exists in array");

} else {

    console.log("Value not found in array");

}

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Kalvi Vaanam Note:
Array concepts strong ஆக build பண்ண இந்த programs-ஐ daily practice பண்ணுங்க 👍

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