[autistic-avenger]

Resolves #16547

Description

This pull request:

Fixes the issue where replaceAfter, replaceAfterLast, replaceBefore, and replaceBeforeLast functions were not handling Empty strings "" ,Instead of replacing the matched part with an empty string they were returning the entire String.

Related Issues

NOPE

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

I asked ai to write the test cases for my changes and proof read once so i don't miss any function still containing the bug I'm trying to fix.

---

@stdlib-js/reviewers

[kgryte]

LGTM. Thanks for fixing!

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
string/base/replace-after	$\\color{green}124/124$ $\\color{green}+100.00\\%$	$\\color{green}10/10$ $\\color{green}+100.00\\%$	$\\color{green}1/1$ $\\color{green}+100.00\\%$	$\\color{green}124/124$ $\\color{green}+100.00\\%$
string/base/replace-after-last	$\\color{green}125/125$ $\\color{green}+100.00\\%$	$\\color{green}9/9$ $\\color{green}+100.00\\%$	$\\color{green}1/1$ $\\color{green}+100.00\\%$	$\\color{green}125/125$ $\\color{green}+100.00\\%$
string/base/replace-before	$\\color{green}108/108$ $\\color{green}+100.00\\%$	$\\color{green}10/10$ $\\color{green}+100.00\\%$	$\\color{green}1/1$ $\\color{green}+100.00\\%$	$\\color{green}108/108$ $\\color{green}+100.00\\%$
string/base/replace-before-last	$\\color{green}125/125$ $\\color{green}+100.00\\%$	$\\color{green}9/9$ $\\color{green}+100.00\\%$	$\\color{green}1/1$ $\\color{green}+100.00\\%$	$\\color{green}125/125$ $\\color{green}+100.00\\%$
string/replace-before	$\\color{green}118/118$ $\\color{green}+100.00\\%$	$\\color{green}9/9$ $\\color{green}+100.00\\%$	$\\color{green}1/1$ $\\color{green}+100.00\\%$	$\\color{green}118/118$ $\\color{green}+100.00\\%$

The above coverage report was generated for the changes in this PR.