VSCODE 自动保存时缩进4个

每次保存时，自动修改格式添加4个空格，想修改成2个，因为eslint是两个空格缩进。
vscode->settings->Code Actions On Save-> setting.json

1 添加：

    "editor.tabSize": 2,

2 If doesn't work

Go to: settings > workspace settings > Text editor
search Editor: Detect Indentation
uncheck 'Detect Indentation' to stick to your default setting.