GV

GeezerVison

The World Wide Web, restored to 800 pixels of glory.

Home|About|Gaming cabinet|Archives|How it works|Starter sites

On this site

  • Sign in
  • ActionsCI/CD and automation
  • CodespacesCloud development environments
  • All Features
  • Documentation
  • Training
  • Certifications
  • Build with Copilot
  • Customize Copilot
  • Integrations
  • Trending repos
  • GitHub Sponsors
  • Developer articles
  • Enterprises

This view

  • Original page
  • New address

GeezerVison is showing github.com — JavaScriptTheAlgorithms/Recursive/BinarySearch.js at master · apetcho/JavaScriptTheAlgorithms

Expand file tree

/

BinarySearch.js

Copy path
More file actions
More file actions

Latest commit

 

History

History
History
33 lines (27 loc) · 1.07 KB
/

BinarySearch.js

Copy path

File metadata and controls

33 lines (27 loc) · 1.07 KB
Raw
Copy raw file
Download raw file
Open symbols panel
Edit and raw actions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
/**
* @function BinarySearch
* @description Search the integer inside the sorted integers array using Binary Search Algorithm.
* @param {Integer[]} arr - sorted array of integers
* @param {Integer} low - The input integer
* @param {Integer} high - The input integer
* @param {Integer} searchValue - The input integer
* @return {Integer} - return index of searchValue if found else return -1.
* @see [BinarySearch](https://en.wikipedia.org/wiki/Binary_search_algorithm)
*/
const binarySearch = (arr, searchValue, low = 0, high = arr.length - 1) => {
// base case
if (high < low || arr.length === 0) return -1
const mid = low + Math.floor((high - low) / 2)
// If the element is present at the middle
if (arr[mid] === searchValue) {
return mid
}
// If element is smaller than mid, then
// it can only be present in left subarray
if (arr[mid] > searchValue) {
return binarySearch(arr, searchValue, low, mid - 1)
}
// Else the element can only be present in right subarray
return binarySearch(arr, searchValue, mid + 1, high)
}
export { binarySearch }
You are visitor 01402520 — GeezerVison does not store the pages you look up.
Best viewed with Netscape Navigator 4.7 or Internet Explorer 6 at 800×600. No cookies required.