To upgrade the Angular version in our project, follow these steps:
- Backup: Before making any changes, it’s a good practice to back up our project. This ensures that we can revert to the previous state if something goes wrong.
- Update Angular CLI: Check if we have the latest version of the Angular CLI installed. Let’s do this by running the following command in our terminal:
ng v
If our Angular CLI is not up to date,we can update it globally using:
npm install -g @angular/cli
3. Update Package.json: Let’s open our project’s package.json file and find the dependencies section. Look for the entry related to Angular (usually named @angular/core & @angular/cli). Change the version number to the desired version we want to upgrade to.
4. Update Dependencies: Run the following command to update our project’s dependencies:
npm update5. Update Angular Packages: Run the following command to update the Angular packages in your project:
ng update @angular/cli @angular/core6. Check for Breaking Changes: Angular updates might come with breaking changes that could affect our code. It’s essential to read the release notes of the version we’re upgrading to and make the necessary code adjustments if needed.
7. Run Tests: After upgrading, make sure to thoroughly test our application to ensure that everything is working as expected.
8. Update Angular CLI Configuration: If there are any changes to the Angular CLI configuration, update our angular.json or angular-cli.json file accordingly.
9. Update Third-party Libraries: Some third-party libraries might not be compatible with the new Angular version. Make sure to update them to versions that are compatible with the new Angular version.
10. Fix Errors: If we encounter any errors during the upgrade process, carefully read the error messages and follow the recommended solutions. We might need to adjust our code or configurations.
11. Commit Changes: Once we have successfully upgraded our project, let us commit the changes to our version control system (e.g., Git).
PS: Remember that upgrading Angular versions might require changes in our code, as APIs and behaviors can evolve between versions. Always test thoroughly and ensure compatibility with our project’s requirements before deploying to production.