I finished my VS Code extension for Codeforces-style local testing for JavaScript.

What the extension does

This extension adds a sidebar panel where I can:

• Add multiple test cases
• Delete test cases
• Write input for each case
• Run all cases with one click
• See output for each case directly in the sidebar

It runs the currently opened JavaScript solution file locally and emulates Codeforces-style functions:

• readline() for input
• print() for output

So I can test JS solutions fast without opening browser custom test pages.

Link to Extension

or you can search by name in VScode "Codeforces JavaScript Local Runner"