eslint babel-eslint 要装一起

npm install eslint babel-eslint -g

或是

npm install eslint babel-eslint -D

还要编写自己的eslinttrc.js

vscode

setting.json

{
    "workbench.colorTheme": "Atom One Dark",
    "workbench.iconTheme": "material-icon-theme",
    "files.autoSave": "off",
    "eslint.validate": [
        "javascript",
        "javascriptreact",
        "vue-html",
        {
            "language": "vue",
            "autoFix": true
        }
    ],
    "eslint.run": "onSave",
    "eslint.autoFixOnSave": true,
    "[html]": {
        "editor.defaultFormatter": "esbenp.prettier-vscode"
    },
    "[javascript]": {
        "editor.defaultFormatter": "vscode.typescript-language-features"
    },
    "editor.codeActionsOnSave": {
        "source.fixAll.eslint": true
    },
    "[json]": {
        "editor.defaultFormatter": "esbenp.prettier-vscode"
    },
    "[vue]": {
        "editor.defaultFormatter": "octref.vetur"
    }
}