René's URL Explorer Experiment


Title: feat: add Fenwick Tree implementation with tests by tanjumul · Pull Request #1897 · TheAlgorithms/JavaScript · GitHub

Open Graph Title: feat: add Fenwick Tree implementation with tests by tanjumul · Pull Request #1897 · TheAlgorithms/JavaScript

X Title: feat: add Fenwick Tree implementation with tests by tanjumul · Pull Request #1897 · TheAlgorithms/JavaScript

Description:  know more Describe your change: Add an algorithm? Fix a bug or typo in an existing algorithm? Documentation change? Checklist: I have read CONTRIBUTING.md. This pull request is all my own work -- I have not plagiarized. I know that pull requests will not be merged if they fail the automated tests. This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms. All new JavaScript files are placed inside an existing directory. All filenames should use the UpperCamelCase (PascalCase) style. There should be no spaces in filenames. Example: UserProfile.js is allowed but userprofile.js,Userprofile.js,user-Profile.js,userProfile.js are not All new algorithms have a URL in their comments that points to Wikipedia or another similar explanation. If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}. Summary This PR adds a Fenwick Tree (Binary Indexed Tree) implementation to the Data-Structures/Tree directory and the test files as well. Features Point updates in O(log n) Prefix sum queries in O(log n) Range sum queries in O(log n) Build tree from existing array Get/Set operations Testing Comprehensive unit tests included Edge cases covered (empty tree, single element, negative values)

Open Graph Description:  know more Describe your change: Add an algorithm? Fix a bug or typo in an existing algorithm? Documentation change? Checklist: I have read CONTRIBUTING.md. This pull request is all my own ...

X Description:  know more Describe your change: Add an algorithm? Fix a bug or typo in an existing algorithm? Documentation change? Checklist: I have read CONTRIBUTING.md. This pull request is all my own ...

Opengraph URL: https://github.com/TheAlgorithms/JavaScript/pull/1897

X: @github

direct link

Domain: Github.com

route-pattern/:user_id/:repository/pull/:id/files(.:format)
route-controllerpull_requests
route-actionfiles
fetch-noncev2:943ef125-4385-379c-b958-6dfe73db611a
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idE374:16349:B93489:F69582:6A62B8CB
html-safe-nonce600d5f8c8b9d43b8bf2b422493414659cb0969f71b1b1b96fc7548699c970a3a
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJFMzc0OjE2MzQ5OkI5MzQ4OTpGNjk1ODI6NkE2MkI4Q0IiLCJ2aXNpdG9yX2lkIjoiNTkwMjYyMzY0MDI5MTI5MzM4NyIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9
visitor-hmac388a6971b7a36702afc20ce241b7a30d259132f84fe90453cda4d5d56f4c35fe
hovercard-subject-tagpull_request:3690069255
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///pull_requests/show/files
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/TheAlgorithms/JavaScript/pull/1897/files
twitter:imagehttps://avatars.githubusercontent.com/u/66847172?s=400&v=4
twitter:cardsummary_large_image
og:imagehttps://avatars.githubusercontent.com/u/66847172?s=400&v=4
og:image:alt know more Describe your change: Add an algorithm? Fix a bug or typo in an existing algorithm? Documentation change? Checklist: I have read CONTRIBUTING.md. This pull request is all my own ...
og:site_nameGitHub
og:typeobject
hostnamegithub.com
expected-hostnamegithub.com
Nonedf33b1b61ee7b9a0af988199bfc3503c9c1acafb1f1d40e1f140ea7c84f890dd
turbo-cache-controlno-preview
diff-viewunified
go-importgithub.com/TheAlgorithms/JavaScript git https://github.com/TheAlgorithms/JavaScript.git
octolytics-dimension-user_id20487725
octolytics-dimension-user_loginTheAlgorithms
octolytics-dimension-repository_id97086543
octolytics-dimension-repository_nwoTheAlgorithms/JavaScript
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id97086543
octolytics-dimension-repository_network_root_nwoTheAlgorithms/JavaScript
turbo-body-classeslogged-out env-production page-responsive full-width
disable-turbotrue
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
released41cd1bdb290013455c0ac430fa755621733f5eb
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files#start-of-content
https://Github.com/
Sign in https://Github.com/login?return_to=https%3A%2F%2Fgithub.com%2FTheAlgorithms%2FJavaScript%2Fpull%2F1897%2Ffiles
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
Code QualityEnforce quality at mergehttps://github.com/features/code-quality
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://Github.com/login?return_to=https%3A%2F%2Fgithub.com%2FTheAlgorithms%2FJavaScript%2Fpull%2F1897%2Ffiles
Sign up https://Github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fpull_requests%2Fshow%2Ffiles&source=header-repo&source_repo=TheAlgorithms%2FJavaScript
Reloadhttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
Reloadhttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
Reloadhttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
Please reload this pagehttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
TheAlgorithms https://Github.com/TheAlgorithms
JavaScripthttps://Github.com/TheAlgorithms/JavaScript
Please reload this pagehttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
Notifications https://Github.com/login?return_to=%2FTheAlgorithms%2FJavaScript
Fork 5.9k https://Github.com/login?return_to=%2FTheAlgorithms%2FJavaScript
Star 34.2k https://Github.com/login?return_to=%2FTheAlgorithms%2FJavaScript
Code https://Github.com/TheAlgorithms/JavaScript
Issues 21 https://Github.com/TheAlgorithms/JavaScript/issues
Pull requests 188 https://Github.com/TheAlgorithms/JavaScript/pulls
Actions https://Github.com/TheAlgorithms/JavaScript/actions
Projects https://Github.com/TheAlgorithms/JavaScript/projects
Wiki https://Github.com/TheAlgorithms/JavaScript/wiki
Security and quality 0 https://Github.com/TheAlgorithms/JavaScript/security
Insights https://Github.com/TheAlgorithms/JavaScript/pulse
Code https://Github.com/TheAlgorithms/JavaScript
Issues https://Github.com/TheAlgorithms/JavaScript/issues
Pull requests https://Github.com/TheAlgorithms/JavaScript/pulls
Actions https://Github.com/TheAlgorithms/JavaScript/actions
Projects https://Github.com/TheAlgorithms/JavaScript/projects
Wiki https://Github.com/TheAlgorithms/JavaScript/wiki
Security and quality https://Github.com/TheAlgorithms/JavaScript/security
Insights https://Github.com/TheAlgorithms/JavaScript/pulse
Sign up for GitHub https://Github.com/signup?return_to=%2FTheAlgorithms%2FJavaScript%2Fissues%2Fnew%2Fchoose
terms of servicehttps://docs.github.com/terms
privacy statementhttps://docs.github.com/privacy
Sign inhttps://Github.com/login?return_to=%2FTheAlgorithms%2FJavaScript%2Fissues%2Fnew%2Fchoose
tanjumulhttps://Github.com/tanjumul
TheAlgorithms:masterhttps://Github.com/TheAlgorithms/JavaScript/tree/master
tanjumul:add-fenwick-treehttps://Github.com/tanjumul/JavaScript/tree/add-fenwick-tree
Conversation 1 https://Github.com/TheAlgorithms/JavaScript/pull/1897
Commits 1 https://Github.com/TheAlgorithms/JavaScript/pull/1897/commits
Checks 3 https://Github.com/TheAlgorithms/JavaScript/pull/1897/checks
Files changed https://Github.com/TheAlgorithms/JavaScript/pull/1897/files
Please reload this pagehttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
feat: add Fenwick Tree implementation with tests https://Github.com/TheAlgorithms/JavaScript/pull/1897/files#top
Show all changes 1 commit https://Github.com/TheAlgorithms/JavaScript/pull/1897/files
e4a046e feat: add Fenwick Tree implementation with tests tanjumul May 15, 2026 https://Github.com/TheAlgorithms/JavaScript/pull/1897/commits/e4a046e44ae152ea195691d5e0acf4942699a25a
Clear filters https://Github.com/TheAlgorithms/JavaScript/pull/1897/files
Please reload this pagehttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
Please reload this pagehttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
FenwickTree.js https://Github.com/TheAlgorithms/JavaScript/pull/1897/files#diff-b60590e74cff7ae011ac43c1f50625302bd990e731bbbe6e434f2f923b72d8fc
FenwickTree.test.js https://Github.com/TheAlgorithms/JavaScript/pull/1897/files#diff-5e606bebece2ba0da59c4a81ab1498e354c63c3aff757afa75bbf0538b94eaf7
https://Github.com/TheAlgorithms/JavaScript/blob/master/.github/CODEOWNERS#L1
Data-Structures/Tree/FenwickTree.jshttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files#diff-b60590e74cff7ae011ac43c1f50625302bd990e731bbbe6e434f2f923b72d8fc
View file https://Github.com/TheAlgorithms/JavaScript/blob/e4a046e44ae152ea195691d5e0acf4942699a25a/Data-Structures/Tree/FenwickTree.js
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://Github.com/TheAlgorithms/JavaScript/pull/1897/{{ revealButtonHref }}
https://Github.com/TheAlgorithms/JavaScript/blob/master/.github/CODEOWNERS#L1
Data-Structures/Tree/test/FenwickTree.test.jshttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files#diff-5e606bebece2ba0da59c4a81ab1498e354c63c3aff757afa75bbf0538b94eaf7
View file https://Github.com/TheAlgorithms/JavaScript/blob/e4a046e44ae152ea195691d5e0acf4942699a25a/Data-Structures/Tree/test/FenwickTree.test.js
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://Github.com/TheAlgorithms/JavaScript/pull/1897/{{ revealButtonHref }}
Please reload this pagehttps://Github.com/TheAlgorithms/JavaScript/pull/1897/files
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.