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As part of the Bazel toolchain migration we noticed that implicit types generated by the TypeScript compiler sometimes end up referencing types from other packages (i.e. cross-package imports). These imports currently work just because the Bazel `ts_library` and `ng_module` rules automatically inserted a `<amd-module name="@angular/x" />` into `.d.ts` of packages. This helped TS figure out how to import a given file. Notably this is custom logic that is not occuring in vanilla TS or Angular compilations—so we will drop this magic as part of the toolchain cleanup! To improve code quality and keep the existing behavior working, we are doing the following: - adding a lint rule that reduces the risk of such imports breaking. The failure scenario without the rule is that API goldens show unexpected diffs, and types might be duplicated in a different package! - keeping the `<amd-module` headers, but we manually insert them into the package entry-points. This should ensure we don't regress anywhere; while we also improved general safety around this above. Long-term, isolated declarations or a lint rule from eslint-typescript can make this even more robust. PR Close #61312 |
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Angular Router
Managing state transitions is one of the hardest parts of building applications. This is especially true on the web, where you also need to ensure that the state is reflected in the URL. In addition, we often want to split applications into multiple bundles and load them on demand. Doing this transparently isn’t trivial.
The Angular router is designed to solve these problems. Using the router, you can declaratively specify application state, manage state transitions while taking care of the URL, and load components on demand.
Guide
Read the dev guide here.