diff --git a/searching/js/linear-search.js b/searching/js/linear-search.js new file mode 100644 index 00000000..434e218f --- /dev/null +++ b/searching/js/linear-search.js @@ -0,0 +1,18 @@ +// Linear Search JavaScript Version: searches for a specific item in an array and returns the index of the item. + +function linearSearch(arr, x) { + // Loop through the array + for (let i = 0; i < arr.length; i++) { + // Checks if the item in the array = search item. If yes, return the index. If not, move to next item. + if (arr[i] === x) { + return i; + } + } + // After looping if the search item is not found, return -1. + return -1; +} + +// Log to the console and have fun! +console.log(linearSearch([2, 5, 8], 5)); +console.log(linearSearch([2, 6, 9, 15], 2)); +console.log(linearSearch([2, 3, 4, 10], 8));