小编Kha*_*han的帖子

我的应用程序中有一些表单.

如何以这样的方式保护表单:如果有人导航或关闭浏览器选项卡,应提示他们确认他们确实要保留未保存数据的表单？

将应用程序升级到 v14.0.2 但当我尝试创建新组件时，它会抛出以下错误。

ng g c views/multi-select
Project "undefined" does not exist.

以下是我的 angular.json 文件

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "ng": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist",
            "index": "src/index.html",
            "main": "src/main.ts",
            "tsConfig": "src/tsconfig.app.json",
            "polyfills": "src/polyfills.ts",
            "assets": [
              "src/assets",
              "src/assets/data.json"
            ],
            "styles": [
              "node_modules/@coreui/icons/css/coreui-icons.css",
              "node_modules/font-awesome/css/font-awesome.css",
              "node_modules/simple-line-icons/css/simple-line-icons.css",
              "src/scss/style.scss"
            ],
            "stylePreprocessorOptions": {
              "includePaths": [
                "./node_modules"
              ]
            },
            "scripts": [],
            "allowedCommonJsDependencies": [
              "lodash",
              "sweetalert2",
              "file-saver",
              "rxjs",
              "angular2-datatable",
              "moment-timezone"
            ], …