Preface
Angular4 finally released its official version two days ago, so how to upgrade it? In fact, Angular2 and Angular4 are in a smooth transition, not like the subversive rewrite of code between 1 and 2.
Angular4 is now releasedhttps:///article/
Why skip Angular 3?
According to Igor Minar, chief developer of Angular team: With the release of Angular 2, the Angular team introduced a semantic version control specification, that is, the semantic version is represented by three sets of numbers and arranged in the order, such as 2.3.1.
The Patch version is released every week, usually only fixes the problem and does not add new features. The Minor version is released every month, with some new features added, but not much changes compared to the old version. The Major version is released every six months, with some new features added and potentially some major changes.
The latest Angular router version number was 3.3.0, while the version number of other modules was 2.2.0. Since the version number was not synchronized, the team plans to synchronize it and directly use 4.0.0 as the new version number.
As the Angular team plans to release a major (Major) version every six months, Angular 5 will be released as planned in September 2017.
Upgrade process
Use npm-check to upgrade using the following command to check and press the space to select the package to upgrade
npm-check -u
Official recommendation
Upgrade cli
npm uninstall -g @angular/cli npm cache clean npm install -g @angular/cli@latest rm -rf node_modules dist # use rmdir /S/Q node_modules dist in Windows Command Prompt; use rm -r -fo node_modules,dist in Windows PowerShell npm install --save-dev @angular/cli@latest
Upgrade package
// linux/mac
npm install @angular/{common,compiler,compiler-cli,core,forms,http,platform-browser,platform-browser-dynamic,platform-server,router,animations}@latest typescript@latest --save
// Windows
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
Replace some other bags
npm install @0.8.4 --save
Execute the installation command
npm install
Summarize
The above is the entire content of this article. I hope the content of this article will be of some help to everyone’s study or work. If you have any questions, you can leave a message to communicate. Thank you for your support.
For more information about AngularJS, readers who are interested in view the topic of this site:Summary of AngularJS command operation skills》、《AngularJS Introduction and Advanced Tutorial"and"AngularJS MVC architecture summary》