Angular, the TypeScript-based,
JavaScript-compiled, Google-developed framework, has been prevalent in the
software industry since 2009. Over time, this framework has proved highly
efficient for developing intuitive and dynamic applications as required by diverse
industrial sectors. Consequently, most businesses these days prefer Angular for
app development. As such, increasing demand for Angularjs app development services has been observed
globally. And this is obvious because, since the inception of Angular, it has
come a long way releasing several advanced versions successfully in quick
progression. AngularJS is known to be its first version and later, Angular 2,
Angular 4, Angular 5, Angular 6, Angular 8, and Angular 9 were released.
Recently, on 24 June 2020, its latest version- Angular 10 was released in the
market. So let us explore this update in detail.
Angular 10 and its Value Offerings
Angular 10 update looks quite smaller than
its previous versions but is an effective attempt of the Angular team to keep
this framework relevant and up-to-date. This time, they have emphasized more on
improving quality, ecosystem, and tools rather than new features. Every Angular
App Development Company must be well versed with the top updates of this
version. The noteworthy updates are as follows:
CommonJS import Warnings
CommonJS was originally meant for designing
the server-side modules and not for reducing the production package size. When the
AngularJS app developers make use of dependencies bundled with CommonJS, it
results in larger code bundles and ultimately slow performing applications. But
after this update, the developers will automatically be notified in case a
CommonJS module pulls into your build.
New Date Range Picker
The new date range picker is another update
in the Angular UI Material component library. The components mat date input
range and mat date picker range can be used for using this range picker.
Optional Stricter Settings
Angular 10 comes with a stricter project
set-up for the creation of a new workspace using “ng new”. Activating the flag-
“ng new-strict” can initialize the new project just with a few settings. These
settings enhance maintainability, enable the CLI to optimize the app functions
in an advanced manner, and also help to identify the bugs well ahead of time.
Also, the “strict” flag reduces default bundle budgets by up to 75%, changes
template type checking to Strict, it selects strict mode in TypeScript, allows
advanced tree-shaking to configure the app as free of side-effects, preventing
declarations of type any by configuring linting rules.
Updates in JS Ecosystem
The Angular team has made a few modifications
for keeping the framework synchronized and up-to-date with the JavaScript
Ecosystem. For instance, TypeScript is updated to TypeScript 3.9, the static
analysis tool for TypeScript- TSLint has been updated to v6, and the runtime
library for TypeScript- TSLib has been updated to v2.0. They have also upgraded
the project layout. There is an additional tsconfig.base.json file as well
which provides enhanced support to the way build tooling and IDEs resolve type
and package configurations. Due to these updates, every AngularJS app
development company can leverage these functionalities to the fullest for
architecting responsive, user-friendly, and customizable apps and other
software projects.
Bugs Resolutions
The Angular team has focused more on
problem-solving during this update. They have worked with the community and
made bigger contributions this time as about 700 issues were completely
resolved considering the overall framework components and tools. The issues of
ranges in the parser, Terser Inlining Bug, errors created due to migration when
the symbol does not exist, etc. were fixed. Additionally, 2,000 more issues
were touched.
Advanced browser Configurations
Browser configurations of Angular have been
updated so that the new projects can exclude less used as well as older
browsers like Internet Explorer 9, 10, Internet Explorer Web, etc. The Angular
app developers can add the browsers that need to be supported in the
.browserslistrc file, for enabling ES5 builds and differential loading for
browsers.
Some Deprecations
In Angular 10, several unimportant sections
have been removed. For example, the Angular Package Format doesn’t include
FESM5 or ESM5 bundles anymore. This saves about 119MB of install- and download-
time, while running yarn or npm install for the libraries and packages in
Angular. Since any down-levelling for supporting the ES5 is performed at the
end of the build process, these formats aren’t needed any longer.
Also, WrappedValue is deprecated. Probably,
it will be removed in v12. WrappedValue was useful for triggering change
detection even if the same object instance was emitted or produced. When
WrappedValue is utilized, there is a performance cost and this functionality is
useful in relatively rare cases. As a result, the Angular team may have decided
to drop it.
Additional Features and Updates
- The team has
added a program-based entry-point finder- EntryPointFinder in Angular version
10. This is supposedly faster than
DirectoryWalkerEntryPointFinder.
- A compiler interface has been introduced during this update that covers the actual ngtsc compiler. With the use of the project interface, the language service-specific compiler can manage several Typecheck files while also building Scriptinfos as needed.
- In Angular
10, the team has removed Autocompletion from HTML entities like &, due
to certain performance issues and problematic value.
- It is now
possible to configure Async locking timeouts which adds support for the
ngcc.config.js file. This sets the retryDelay and retryAttempts options for the
AsyncLocker.
- The team has
also made type-checking performance enhancements to the compiler-CLI.
- Angular
version 10 supports the merging of several translation files. Before this
version, only a single translation file was permitted per locale. Now it is
possible to specify multiple files per locale for the users and with the help
of messaging ID, the transactions from every file will be merged.
- For
performance improvement, the Angular team has made computation of basePaths
lazy, so, the work will be performed in TargetedEntryPointFinder only if
required. Before this version, the basePaths got computed as and when the
finder got instantiated even though the entry-point was already processed. This
was a waste of effort which has now been handled.
- Urlmatcher’s
type now indicates clearly that it can always return null.
- Improved performance due to a decrease in the size of the entrypoint manifest and implementing a caching technique in the manifest.
Final Verdict:
With incredible features, some removals, and
some modifications, Angular has enriched itself and become all the more
powerful. Owing to features like data linking, reusing of web elements, tooling,
etc. along with Google’s vibrant community support, the popularity of angularjs
web app development and
angularjs mobile app development has exponentially risen.
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