由于缺少绿色灯泡，因此无法在Visual Studio中自动创建jsconfig.json

Question

I want to create a jsconfig.json file, but Visual studio is not showing me the green bulb that allows me to do this. I'm used to finding the green bulb at the bottom right of the editor like this image is showing.

Why can't I see the green bulb?

Answer 1

Writing jsconfig.json

When VS Code detects that you are working on a JavaScript file , it looks to see if you have a JavaScript configuration file jsconfig.json in your workspace. If it doesn't find one, you will see a green lightbulb on the Status Bar prompting you to create one. Click the green lightbulb and accept the prompt to create a jsconfig.json file. ( source )

It looks like the availability of the green lightbulb is determined by the currently opened file being a javascript file.

Otherwise just create a jsconfig.json file yourself:

{
    "compilerOptions": {
        "target": "ES6"
    },
    "exclude": [
        "node_modules"
    ]
}

Answer 2

TypeScript now infers the JavaScript project if no jsconfig.json is found. This means that the green light bulb hint about creating a jsconfig.json file is not required so it was removed from vscode in November iteration (1.7.0 or 1.7.1). The vscode documentation was not yet updated to reflect that change.

Related PR: vscode/pull/15213 Related plan item: vscode/issues/15205

tl;dr Starting from vscode 1.7.1 you don't need the jsconfig.json file unless you are overwriting/extending default setting.