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0c44ab3058
With this change we replace `@jsdevtools/coverage-istanbul-loader` webpack loader with [`babel-plugin-istanbul`](https://github.com/istanbuljs/babel-plugin-istanbul) which is an official Babel plugin by the istanbuljs team.
Previously, when code coverage was enabled we had multiple Babel runs on the same file. This is because istanbuljs' `instrumentSync` and `instrument` APIs which are used by the Webpack plugin invokes Babel directly 66bc39b3c7/packages/istanbul-lib-instrument/src/instrumenter.js (L98)
By using the babel plugin directly, we avoid this which also improves the sourcemaps correctness and test performance.
Closes #22010
@angular-devkit/build-angular
This package contains Architect builders used to build and test Angular applications and libraries.
Builders
| Name | Description |
|---|---|
| app-shell | Build an Angular App shell. |
| browser | Build an Angular application targeting a browser environment. |
| dev-server | A development server that provides live reloading. |
| extract-i18n | Extract i18n messages from an Angular application. |
| karma | Execute unit tests using Karma test runner. |
| ng-packagr | Build and package an Angular library in Angular Package Format (APF) format using ng-packagr. |
| server | Build an Angular application targeting a Node.js environment. |
| protractor | Deprecated - Run end-to-end tests using Protractor framework. |
Disclaimer
While the builders when executed via the Angular CLI and their associated options are considered stable, the programmatic APIs are not considered officially supported and are not subject to the breaking change guarantees of SemVer.