vscode: Intellisense menu very slow to open (.js files)

Try disabling “TypeScript and JavaScript Language Features”. It is Vs Code built in extension and disabling this fixed this issue for me.

1. Ctrl + Shift + P
2. Type TypeScript
3. Click “TypeScript: Open TS Server log”
4. At the bottom right, there will appear a notification. Click Setting icon on the notification and then manage extension.
5. Disable it.

Oooo… so far so good… thanks @longbuibao !!!

@dancherb so if you are working on a standard javascript projects, I think you have to install typescript globally by npm install -g typescript@3.8.3 Find your location of node_modules folder (here) and then in vscode, press Ctrl + , to open setting find typescript.version, click on Edit in settings.json and paste your node_modules path in

{
  "typescript.tsdk": "some/path/to/node_modules/typescript/lib"
}

I’ve been struggling for a few days to this issue and eventually solved by downgrading the typescript version to 3.8.3! (solution on issue #95200) Anyway as far as I know, this issue is strongly relevent to tsserver.js, that is the vscode electron_node process running background, occupying more than 100% of cpu.

npm install —save-dev typescript@3.8.3

// settings.json(workspace)
{
  "typescript.tsdk": "./node_modules/typescript/lib"
}

command > Typescript: Select Typescript Version…