Popular Algorithms in Javascript.

Linear Search: function linearSearch(arr, target) { for (let i = 0; i < arr.length; i++) { if (arr[i] === target) return i; } return -1; } console.log(linearSearch([1, 2, 3, 4, 5], 3)); // 2 console.log(linearSearch([1, 2, 3, 4, 5], 6)); ...