Question

现在Angular is following a Semantic Versioning和Angular2.4.3 were released，我在现有项目中升级到下一个Angular版本时的最佳做法有点困惑。

我有一个使用Angular-cli的项目@angular/core: 2.2.0。这是我的package.json：

"dependencies": {
    "@angular/common": "~2.2.0",
    "@angular/compiler": "~2.2.0",
    "@angular/core": "~2.2.0",
    "@angular/forms": "~2.2.0",
    "@angular/http": "~2.2.0",
    "@angular/platform-browser": "~2.2.0",
    "@angular/platform-browser-dynamic": "~2.2.0",
    "@angular/router": "~3.2.0",
    "@types/jasmine": "^2.5.40",
    "angular2-click-outside": "^0.1.0",
    "angular2-modal": "^2.0.2",
    "bootstrap": "4.0.0-alpha.4",
    "bootstrap-loader": "^2.0.0-beta.15",
    "core-js": "^2.4.1",
    "karma-remap-istanbul": "^0.2.2",
    "material-design-icons": "^3.0.1",
    "ng2-bootstrap": "^1.1.16",
    "ng2-charts": "^1.4.4",
    "postcss-loader": "^1.1.1",
    "rxjs": "5.0.0-rc.4",
    "screenfull": "^3.0.2",
    "ts-helpers": "^1.1.1",
    "zone.js": "^0.6.23"
  },
  "devDependencies": {
    "@types/jasmine": "^2.2.30",
    "@types/node": "^6.0.42",
    "angular-cli": "1.0.0-beta.19-3",
    "codelyzer": "1.0.0-beta.3",
    "jasmine-core": "2.5.2",
    "jasmine-spec-reporter": "2.7.0",
    "karma": "1.3.0",
    "karma-chrome-launcher": "^2.0.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-remap-istanbul": "^0.2.1",
    "node-sass": "^3.13.0",
    "protractor": "4.0.11",
    "replace": "0.3.0",
    "ts-node": "1.7.0",
    "tslint": "3.15.1",
    "typescript": "~2.0.3",
    "webdriver-manager": "10.2.8"
  }

问题：如何按照最佳做法升级到下一个Angular版本（现在：2.4.3或4.0.0-beta.3）？使用npm或yarn。

Answer 1

我建议您安装 npm-check-updates 库。这将让您找到您使用的最新版本的依赖项。

按照以下步骤操作：

安装

npm i -g npm-check-updates

更新package.json：

npm-check-updates -u

安装最新版本的依赖项

npm install

Answer 2

我已将我的应用从Angular 2.4.0升级到4.0.2，而不进行任何代码更改！请记住，这取决于您使用的功能/类/方法。

我跑了

npm i @angular/common@latest @angular/compiler@latest @angular/core@latest @angular/forms@latest @angular/http@latest @angular/platform-browser@latest @angular/platform-browser-dynamic@latest @angular/platform-server@latest @angular/router@latest typescript@latest --S -E

然后

npm i @angular/compiler-cli@latest --D -E

注意：如果您想要最新的稳定版本，请使用@latest。如果您想要最新的＆＃39;流血边缘，请使用@next。版本

Answer 3

对于Windows您可以使用以下命令

npm install @angular/common@latest @angular/compiler@latest @angular/compiler-cli@latest @angular/core@latest @angular/forms@latest @angular/http@latest @angular/platform-browser@latest @angular/platform-browser-dynamic@latest @angular/platform-server@latest @angular/router@latest @angular/animations@latest typescript@latest --save

按照最佳做法升级Angular版本（现在：2.4.3或4.0.0-beta.3）？

3 个答案: