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Tutorial
javascript

JavaScript DSA (Data Structures and Algorithms) Tutorial: A Beginner's Guide

Binary Search Implementation:

function binarySearch(array, target) {
    let left = 0;
    let right = array.length - 1;

    while (left <= right) {
        let middle = Math.floor((left + right) / 2);
        if (array[middle] === target) {
            return middle;
        } else if (array[middle] < target) {
            left = middle + 1;
        } else {
            right = middle - 1;
        }
    }
    return -1;
}

let sortedArray = [10, 20, 30, 40, 50];
console.log(binarySearch(sortedArray, 30)); // Output: 2
console.log(binarySearch(sortedArray, 60)); // Output: -1

Aug 30, 2024
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