【问题标题】:Will angular automatically update if I run higher version(angular 6) project in my machine(lower version angular 5)?如果我在我的机器上运行更高版本(角度 6)的项目(低版本角度 5),角度会自动更新吗?
【发布时间】:2018-07-11 06:39:03
【问题描述】:

我有一个 Angular 6 项目。我想在另一台已经安装 angular 5 的机器上运行它。如果我使用'npm,install'在该机器上运行 angular 6 项目,它是否从 angular 5 升级到 angular 6?我还有其他使用 angular 5 开发的项目。如果我在 (angular 5) 机器上运行 angular 6 项目,这些项目会受到影响吗?

angular 6 项目 package.json

{
  "name": "order-tracking",
  "version": "0.0.0",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^6.0.3",
    "@angular/common": "^6.0.3",
    "@angular/compiler": "^6.0.3",
    "@angular/core": "^6.0.3",
    "@angular/forms": "^6.0.3",
    "@angular/http": "^6.0.3",
    "@angular/platform-browser": "^6.0.3",
    "@angular/platform-browser-dynamic": "^6.0.3",
    "@angular/router": "^6.0.3",
    "@auth0/angular-jwt": "^2.0.0",
    "angular-4-data-table-bootstrap-4": "^0.2.0",
    "bootstrap": "^4.1.1",
    "core-js": "^2.5.4",
    "jquery": "^3.3.1",
    "popper.js": "^1.14.3",
    "rxjs": "^6.2.1",
    "rxjs-compat": "^6.0.0-rc.0",
    "zone.js": "^0.8.26"
  },
  "devDependencies": {
    "@angular/compiler-cli": "^6.0.3",
    "@angular-devkit/build-angular": "~0.6.8",
    "typescript": "~2.7.2",
    "@angular/cli": "~6.0.8",
    "@angular/language-service": "^6.0.3",
    "@types/jasmine": "~2.8.6",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~8.9.4",
    "codelyzer": "~4.2.1",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~1.7.1",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.0",
    "karma-jasmine": "~1.1.1",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.3.0",
    "ts-node": "~5.0.1",
    "tslint": "~5.9.1"
  }
}

【问题讨论】:

  • 它不会自动更新,在 Angular 6 中,他们提供了一个 CLI 命令 ng-update,它将负责将 angular 以及其他依赖项更新到最新版本
  • 向我们展示您的package.json

标签: angular upgrade


【解决方案1】:

只需运行命令npm install,它将安装您所有的 Angular 6 依赖项。

由于您的项目已经使用 Angular 6 构建,所以这里不需要做任何特别的事情。 仅当您的应用程序构建在 Angular 较低版本上并且您想迁移到 Angular 6 时,您才需要 ng update

【讨论】:

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