TypeScript settings do not disable TypeScript error messages in tooltips.

[dzrw]

If you are @mjbvz, please consider reading this bug report before closing the ticket with an irrelevant answer. The steps to reproduce take 60 seconds to complete.

We do not use TypeScript in several of our projects, so we have attempted to disable TypeScript validation in our JavaScript files. However, VSCode displays TypeScript-related messages despite the settings instructing it not to do so.

Apparently this is a regression in the latest build because there was another long bug closed by @sandy081 about a similar issue back in March 2018 where the team appeared to have communicated that the ability to disable TypeScript was a feature that VScode supported.

• VSCode Version: 1.25.1
• OS Version: macOS 10.13.6

Steps to Reproduce:

1. Launch with code --disable-extensions
2. Open User Settings and configure it as per below.
3. Create a new file
4. Type import test from "path"
5. Change the Language Mode to "JavaScript"
6. Hover over the word test and observe the message `[ts] 'test' is declared but its value is never read' appears inside the tooltip.
7. The expected behavior is that VSCode does not attempt to communicate TypeScript-related error messages when TypeScript validation is disabled.

User Settings for Step 2

Important Clarification Default JavaScript settings should not be modified.

    # Surely one of these will turn off all [ts] messages in tooltips!
    "typescript.validate.enable": false,
    "typescript.autoImportSuggestions.enabled": false,
    "typescript.check.npmIsInstalled": false,
    "typescript.format.enable": false,
    "typescript.format.insertSpaceAfterCommaDelimiter": false,
    "typescript.format.insertSpaceAfterFunctionKeywordForAnonymousFunctions": false,
    "typescript.format.insertSpaceAfterKeywordsInControlFlowStatements": false,
    "typescript.format.insertSpaceAfterOpeningAndBeforeClosingNonemptyBraces": false,
    "typescript.format.insertSpaceAfterSemicolonInForStatements": false,
    "typescript.format.insertSpaceBeforeAndAfterBinaryOperators": false,
    "typescript.quickSuggestionsForPaths": false,
    "typescript.reportStyleChecksAsWarnings": false,
    "typescript.showUnused": false,
    "typescript.suggestionActions.enabled": false,
    "typescript.tsc.autoDetect": "off",
    "typescript.updateImportsOnFileMove.enabled": "never",
    "tslint.enable": false

Does this issue occur when all extensions are disabled?: Yes

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• VSCode continues to display TypeScript errors when all TypeScript settings are disabled. (#54691)
• Unable to start VSCode 1.19.3 in X2go (#42619)
• Parameter hints do not disappear (#50467)
• Tab Drag and Drop between editors is CPU intensive (#28441)

[dzrw]

Not a duplicate of #54691 because that was closed without the reviewer demonstrating that they understood the ticket.

[mjbvz]

Duplicate of #54691

Please post on original issue if you disagree with my response to it