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mgechev 520ff69854 perf(core): add private hooks around user code executed by the runtime (#41255)
Introduces an **internal**, **experimental** `profiler` function, which
the runtime invokes around user code, including before and after:
- Running the template function of a component
- Executing a lifecycle hook
- Evaluating an output handler

The `profiler` function invokes a callback set with the global
`ng.ɵsetProfiler`. This API is **private** and **experimental** and
could be removed or changed at any time.

This implementation is cheap and available in production. It's cheap
because the `profiler` function is simple, which allows the JiT compiler
to inline it in the callsites. It also doesn't add up much to the
production bundle.

To listen for profiler events:

```ts
ng.ɵsetProfiler((event, ...args) => {
  // monitor user code execution
});
```

PR Close #41255
2021-04-02 10:34:23 -07:00
.circleci ci: update commit-message verification range parameters (#41341) 2021-04-01 11:30:26 -07:00
.devcontainer docs: fix misspelled word in VSCode Remote Development guide (#41376) 2021-04-01 12:02:02 -07:00
.github docs: use dedicated anchors for links to `CONTRIBUTING.md` (#41250) 2021-04-01 11:19:57 -07:00
.husky build: update to husky@5 (#39739) 2020-11-18 11:11:41 -08:00
.ng-dev build: remove commit message max line length limit (#41157) 2021-03-10 11:05:43 -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 build: Bump minimum required node version to 10.19.0 (#41390) 2021-04-02 10:29:24 -07:00
dev-infra fix(dev-infra): require npm login for all publishes via wombat proxy (#41422) 2021-04-02 10:30:18 -07:00
docs docs: use dedicated anchors for links to `CONTRIBUTING.md` (#41250) 2021-04-01 11:19:57 -07:00
goldens perf(core): add private hooks around user code executed by the runtime (#41255) 2021-04-02 10:34:23 -07:00
integration refactor(compiler-cli): implement `ɵɵngDeclareFactory` (#41231) 2021-03-30 16:46:37 -07:00
modules fix(dev-infra): update build tooling for latest changes in rules_nodejs (#40710) 2021-02-09 10:48:43 -08:00
packages perf(core): add private hooks around user code executed by the runtime (#41255) 2021-04-02 10:34:23 -07:00
scripts ci: do not try to publish directories that are not packages (#41393) 2021-04-01 11:26:11 -07:00
third_party docs: update links to use HTTPS as protocol (#39718) 2020-11-20 12:52:16 -08:00
tools build: emit performance JSON file for each ng_module() (#41125) 2021-03-24 13:42:25 -07:00
.bazelignore ci: add integration test for Angular Elemens with SSR (#40559) 2021-02-12 08:55:25 -08:00
.bazelrc build: emit performance JSON file for each ng_module() (#41125) 2021-03-24 13:42:25 -07:00
.bazelversion build: update .bazelversion (#40579) 2021-01-26 11:35:54 -08:00
.clang-format
.editorconfig
.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
.nvmrc build: migrate to node@12.14.1 (#34955) 2020-01-27 09:31:22 -08:00
.pullapprove.yml ci: add Zach Arend to pullapprove (#41386) 2021-04-01 12:06:17 -07:00
.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 release: cut the v12.0.0-next.7 release (#41423) 2021-04-01 16:56:42 -07:00
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 link to fork repo how-to (#41266) 2021-03-23 11:22:31 -07:00
LICENSE docs: update the copyright notice date (#40707) 2021-02-16 10:04:23 -08:00
README.md docs: document `help wanted` and `good first issue` labels (#41195) 2021-03-15 10:31:29 -07:00
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 build: Bump minimum required node version to 10.19.0 (#41390) 2021-04-02 10:29:24 -07:00
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 refactor(dev-infra): set up new method for checking range of commits (#41341) 2021-04-01 11:30:26 -07:00
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.

Quickstart

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Changelog

Learn about the latest improvements.

Upgrading

Check out our upgrade guide to find out the best way to upgrade your project.

Contributing

Contributing Guidelines

Read through our contributing guidelines to learn about our submission process, coding rules and more.

Want to Help?

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 labeled as help wanted or good first issue.

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Help us keep Angular open and inclusive. Please read and follow our Code of Conduct.

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