migrating from Angular 6 to Angular 7

Question

I have recently upgraded my Angular 4 app to Angular 6 and now want to upgrade to Angular 7. According to the below article , running command the following command shouldn't take more than 10 mins to upgrade.

ng update @angular/cli @angular/core

https://blog.angular.io/version-7-of-angular-cli-prompts-virtual-scroll-drag-and-drop-and-more-c594e22e7b8c

I dont see anything happening on the command prompt after running this command. No errors. Could somebody tell me why this is happening

Answer 1

I've updated 6 to 7 using:

Angular dependencies

   npm install @angular/animations@latest @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 --save

Angular dev dependencies

  npm install @angular-devkit/build-angular@latest @angular/compiler-cli@latest @angular/cli@latest @angular/language-service@latest --save-dev

Dependencies; Core-js and Zone.js

npm install core-js@latest zone.js@latest --save

Dev dependencies; Types, codelyzer, karma tools, jasmine, protractor and tslint

npm install @types/jasmine@latest @types/node@latest codelyzer@latest karma@latest karma-chrome-launcher@latest karma-cli@latest karma-jasmine@latest karma-jasmine-html-reporter@latest jasmine-core@latest jasmine-spec-reporter@latest protractor@latest tslint@latest --save-dev

The new version 3+ of TypeScript

npm install typescript@latest --save-dev

Latest version 6+ of RxJS

npm install rxjs@latest rxjs-compat@latest --save

And:

npm install rxjs-tslint@latest --save-dev

Latest version 4+ of Webpack

npm install webpack@latest --save-dev

source

Answer 2

ANGULAR 6.1 to 7 MIGRATION PROCEDURE

In order to upgrade properly from Angular 6.1 to angular 7, you have to follow the next steps:

WARNING: Please check if all your imported modules are compatible with angular 7, upgrade them if necessary.

Before upgrade to Angular 7:

1. Change the HttpModule import to HttpClientModule (import {HttpClientModule} from '@angular/common/http';)

2. Change the Http imports (if you have any) to import {HttpClient} from '@angular/common/http';

Don´t forget to remove all JSON.parse(response), since you don´t need to do that anymore with HttpClient

3. If you are using RXjs, you have to remove RXjs 6 old dependencies. No worries, you can do that running the following scripts:

   npm install -g rxjs-tslint

   rxjs-5-to-6-migrate -p src/tsconfig.app.json

You may have to update typescript in order to migrate rxjs successfully: npm i -g typescript

4. Uninstall rxjs-compat module (npm uninstall rxjs-compat)

5. If you use the Angular Service worker, migrate any versionedFiles to the files array.

6. Update angular cli to v7:

   ng update @angular/cli

7. Update angular Core to v7:

   ng update @angular/core

8. Finally you have to upgrade Angular material:

   ng update @angular/material

Answer 3

here,you can find guide related to update from any version to angular 7

https://update.angular.io/

Or you can simply run a command into your CLI

  ng update --all