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JoostK 9cec94a008 perf(compiler-cli): use bound symbol in import graph in favor of module resolution (#40948)
The import graph scans source files for its import and export statements
to extract the source files that it imports/exports. Such statements
contain a module specifier string and this module specifier used to be
resolved to the actual source file using an explicit module resolution
step. This is especially expensive in incremental rebuilds, as the
module resolution cache has not been primed during program creation
(assuming that the incremental program was able to reuse the module
resolution results from a prior compilation). This meant that all module
resolution requests would have to hit the filesystem, which is
relatively slow.

This commit is able to replace the module resolution with TypeScript's
bound symbol of the module specifier. This symbol corresponds with the
`ts.SourceFile` that is being imported/exported, which is exactly what
the import graph was interested in. As a result, no filesystem accesses
are done anymore.

PR Close #40948
2021-03-08 12:05:48 -08:00
.circleci ci: run localize tests on windows (#40952) 2021-02-24 14:27:07 -08:00
.devcontainer build: update the recommended `Dockerfile` for VSCode remote development (#34697) 2020-01-09 13:31:14 -08:00
.github ci: update l2 triage label configuration for pull requests (#39954) 2020-12-03 13:43:02 -08:00
.husky build: update to husky@5 (#39739) 2020-11-18 11:11:41 -08:00
.ng-dev build: set npm registry for publishing (#40485) 2021-01-27 10:34:21 -08:00
.vscode build: use "outFiles" in .vscode/launch.json to speed up debugging sessions (#39848) 2020-12-17 11:23:13 -08:00
.yarn build: update to yarn v1.22.10 (#40562) 2021-01-26 10:52:27 -08:00
aio docs: remove augury resource (#41107) 2021-03-08 10:00:13 -08:00
dev-infra test(dev-infra): fix test order failure in tests for the release command (#41023) 2021-03-08 10:33:07 -08:00
docs docs: fix some typos in angular.io examples (#41093) 2021-03-05 15:08:11 -08:00
goldens docs: remove augury resource (#41107) 2021-03-08 10:00:13 -08:00
integration feat(compiler): emit @__PURE__ or @pureOrBreakMyCode annotations in the generated code (#41096) 2021-03-08 10:30:08 -08:00
modules fix(dev-infra): update build tooling for latest changes in rules_nodejs (#40710) 2021-02-09 10:48:43 -08:00
packages perf(compiler-cli): use bound symbol in import graph in favor of module resolution (#40948) 2021-03-08 12:05:48 -08:00
scripts ci: improve error message when payload size check fails (#41116) 2021-03-08 10:03:59 -08:00
third_party docs: update links to use HTTPS as protocol (#39718) 2020-11-20 12:52:16 -08:00
tools fix(dev-infra): update type castings for JSON.parse usage (#40710) 2021-02-09 10:48:43 -08:00
.bazelignore ci: add integration test for Angular Elemens with SSR (#40559) 2021-02-12 08:55:25 -08:00
.bazelrc build: update config flags for snapshot builds (#40095) 2020-12-15 13:36:56 -08:00
.bazelversion build: update .bazelversion (#40579) 2021-01-26 11:35:54 -08:00
.clang-format feat(tooling): Add a .clang-format for automated JavaScript formatting. 2015-04-02 08:44:34 -07:00
.editorconfig build: use https link to editorconfig.org in .editorconfig (#27664) 2018-12-18 09:30:09 -08:00
.gitattributes test: fix ts api guardian and public guard tests on windows (#30105) 2019-04-26 16:32:22 -07:00
.gitignore fix(dev-infra): add vim .swp files to gitignore (#40094) 2020-12-14 11:39:41 -08:00
.gitmessage fix(platform-webworker): remove platform-webworker and platform-webworker-dynamic (#38846) 2020-09-30 09:13:59 -04:00
.mailmap build: add a Git .mailmap with my new name (#19550) 2017-10-09 14:35:30 -07:00
.nvmrc build: migrate to node@12.14.1 (#34955) 2020-01-27 09:31:22 -08:00
.pullapprove.yml docs: add what is angular topic (#40811) 2021-02-17 11:13:21 -08:00
.yarnrc build: update to yarn v1.22.10 (#40562) 2021-01-26 10:52:27 -08:00
BUILD.bazel test(upgrade): run tests against AngularJS v1.8.x as well (#39972) 2020-12-07 09:40:49 -08:00
CHANGELOG.md docs: fix typo in `CHANGELOG.md` (find-tuned --> fine-tuned) (#41113) 2021-03-08 08:31:42 -08:00
CODE_OF_CONDUCT.md docs: add Discord as an official communication channel (#39149) 2020-10-14 10:23:15 -07:00
CONTRIBUTING.md docs: add an exception for accepting contributions (#39611) 2020-11-24 08:40:22 -08:00
LICENSE docs: update the copyright notice date (#40707) 2021-02-16 10:04:23 -08:00
README.md docs: add Discord, YouTube, StackOverflow to the "Community" section in `README.md` (#41086) 2021-03-08 08:35:22 -08:00
WORKSPACE build: update to rules_nodejs@3.2.1 (#40972) 2021-02-24 08:00:03 -08:00
browser-providers.conf.js ci: remove IE 9 and IE 10 from CI (#38931) 2020-09-25 14:31:10 -04:00
gulpfile.js build: remove check-env script (#39980) 2020-12-07 09:48:11 -08:00
karma-js.conf.js test(core): tag `render3` test targets as ivy-only (#40127) 2021-01-06 08:28:03 -08:00
package.json release: cut the v12.0.0-next.3 release 2021-03-03 23:09:28 +00:00
test-events.js build: update license headers to reference Google LLC (#37205) 2020-05-26 14:26:58 -04:00
test-main.js feat(platform-server): allow shimming the global env sooner (#40559) 2021-02-12 08:55:25 -08:00
tslint.json build: exclude build-worker file from formatting (#40012) 2020-12-08 12:06:53 -08:00
yarn.lock build: update to rules_nodejs@3.2.1 (#40972) 2021-02-24 08:00:03 -08:00
yarn.lock.readme.md build: remove travisci leftovers (#27979) 2019-01-09 10:41:16 -08:00

README.md

Angular - One framework. Mobile & desktop.

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Angular is a development platform for building mobile and desktop web applications
using Typescript/JavaScript and other languages.

www.angular.io

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Documentation

Get started with Angular, learn the fundamentals and explore advanced topics on our documentation website.

Advanced

Development Setup

Prerequisites

Setting Up a Project

Install the Angular CLI globally:

npm install -g @angular/cli

Create workspace:

ng new [PROJECT NAME]

Run the application:

cd [PROJECT NAME]
ng serve

Angular is cross-platform, fast, scalable, has incredible tooling, and is loved by millions.

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Want to file a bug, contribute some code, or improve documentation? Excellent! Read up on our guidelines for contributing and then check out one of our issues in the hotlist: community-help.

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