Visual Studio 代码:将文档语法突出显示更改为 JSON 的键绑定

Visual Studio Code: keybinding to change document syntax highlighting to JSON

我正在尝试创建一个键绑定以将当前文本文档语言更改为 JSON。这是我正在尝试的:

{
    "key": "ctrl+alt+j",
    "command": "vscode.languages.setTextDocumentLanguage",
    "args": {"document":"active_doc", "languageId": "json"}
}

VSCode 说
command 'vscode.languages.setTextDocumentLanguage' not found

我明白这是一个函数而不是命令,所以语法肯定不同。有没有办法调整我的语法来使它工作,或者是否有一个扩展可以使它工作? 提前致谢

Here is an example of the function being called in JavaScript from another extension

有一个扩展可以通过键绑定更改活动编辑器的语言:

{
    "key": "ctrl+shift+8",
    "command": "changeLanguageMode.change",
    "args": "typescript"
}

https://marketplace.visualstudio.com/items?itemName=usernamehw.change-language-mode