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This article will take you through the new features in Angular10. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.
Angular 10 is a major upgrade to the popular web development framework and is usually available as an official release on June 24th. The official version upgrade is based on the TypeScript-based framework developed by Google, which focuses more on quality, tools, and ecosystem improvement features than the new version.
Angular 10 is smaller than previous Angular versions. New features include a new date range picker and CommonJS import warnings in the Angular Material UI component library. CommonJS import warnings alert developers when using dependencies packaged with CommonJS that could result in larger, slower applications, allowing developers to replace ECMAScript module packages.
Related tutorial recommendations: "angular tutorial"
In addition, the optional strict settings provide a more strict project settings when creating a new workspaceng new
, through ng new -- strict
. Enabling this flag will initialize new projects with new settings to improve maintainability, help catch errors and allow the CLI to perform advanced optimizations on the application.
You can find the general release of Angular 10 on GitHub. To update your current Angular installation, you can run the following command:
ng update @angular/cli @angular/core
The main features of Angular 10 include:
yarn
or npm install
for Angular packages and libraries time. EntryPointFinder
, which is a program-based entry point finder that can be seeded from imports in the program specified by the tsjconfig.json file. This is expected to be faster than DirectoryWalkerEntryPointFinder
when the active program imports only a small subset of installed entry points. &
due to questionable value and performance issues. ModuleWithProviders
mandatory. In order for the ModuleWithProviders
pattern to work with the Ivy compilation and rendering pipeline, generic type parameters are required, but prior to this submission, View Engine allowed generic types to be omitted. Version 10 migrations will update code if developers use ModuleWithProviders
without generic types. However, if a developer uses View Engine and relies on a library that ignores generic types, a build error will be issued. In this case ngcc will not help and the migration will only cover the application code. Library authors should be contacted to fix their libraries. As a workaround, you can set skipLibChecks to false in tsconfig or update the application to only use Ivy.
Now features TypeScript 3.9, and support for TypeScript 3.8 has been removed. This is a major change. TypeScript 3.6 and TypeScript 3.7 are also no longer supported. TargetedEntryPointFinder
is needed. Previously, basePaths
was calculated whenever the finder was instantiated, which wasted effort when the target entry point had already been processed.
Supports merging multiple translation files. Previously, only one translation file was allowed per locale. Users can now specify multiple files per locale, and transactions for each file will be merged by messaging ID. retryDelay
options. Integration tests have new timeout checks added and timeouts reduced using ngcc.config.js to prevent tests from taking too long.
In a breaking change, warnings about unknown elements are now logged as errors. While this won't break the application, it may trigger some tools that expect nothing to be logged via console.error. default!Empty
.
Added dependency information and ng-content selector in metadata. The proposed compiler feature will provide additional metadata useful for tools such as Angular Language Service, with the ability to provide suggestions for directives/components defined in the library. B
format codes, the rendered string does not correctly handle daylight hours that span several days. Instead, the logic falls back to the default case of AM
. This logic has been updated so that it matches the time of day after midnight, so it will now render the correct output, e.g. at night
at night
in English.Applications that use formatDate()
or DatePipe
or b
and B
format codes will be affected by this change. CanLoad
protector can now return Urltree
. Return CanLoad
ProtectionUrltree
of Urltree
Cancels the current navigation and redirects. This matches the current behavior available for CanActivate
guards, which has also been added. This does not affect preloading. The CanLoad
guard blocks any preloading; any route with a CanLoad
guard will not be preloaded, and the guard will not be performed as part of the preload. --compilation_level=SIMPLE
. This flag will ensure that the build pipeline produces buildable, runnable artifacts but at an increased payload size due to advanced optimization being disabled. Translated from: https://www.infoworld.com/article/3537449/whats-new-in-angular-10.html
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