Google says don’t use JavaScript to generate a noindex tag in the original page code

Google updated its JavaScript SEO basics documentation to clarify that may skip rendering and JavaScript execution.

Google explains JavaScript execution on non-200 HTTP status codes

Google noted that if the HTTP status code is non-200 (for example, on error pages with 404 status code), rendering might be skipped.

Google Warns: Don't Use NoIndex Tags In Pages That Use JavaScript

Google updated its JavaScript SEO documentation to warn against using a noindex tag in the original page code on JavaScript ...
Visual Studio Magazine

Microsoft Tests Copilot-Powered Tool to Modernize JavaScript/TypeScript in VS Code

Microsoft previews a GitHub Copilot-powered VS Code Insiders tool that modernizes JavaScript/TypeScript apps by upgrading npm ...