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History

snek 73fbd61bd0 fix: performance.timeOrigin (#26787 ) `performance.timeOrigin` was being set from when JS started executing, but `op_now` measures from an `std::time::Instant` stored in `OpState`, which is created at a completely different time. This caused `performance.timeOrigin` to be very incorrect. This PR corrects the origin and also cleans up some of the timer code. Compared to `Date.now()`, `performance`'s time origin is now consistently within 5us (0.005ms) of system time. ![image](https://github.com/user-attachments/assets/0a7be04a-4f6d-4816-bd25-38a2e6136926)		2024-11-08 23:20:24 +01:00
..
01_errors.js	feat(cli): use NotCapable error for permission errors (#25431 )	2024-09-10 11:12:24 -07:00
01_version.ts	refactor: use `core.ensureFastOps()` (#21888 )	2024-01-10 15:37:25 -07:00
06_util.js	refactor: use web utils and lazy load utils from core (#22289 )	2024-02-06 22:28:32 +01:00
10_permissions.js	fix(unstable/worker): ensure import permissions are passed (#26101 )	2024-10-10 14:01:42 +01:00
11_workers.js	fix(runtime): use more null proto objects (#23921 )	2024-05-23 00:03:35 +02:00
30_os.js	fix: validate integer values in `Deno.exitCode` setter (#24068 )	2024-06-02 21:29:01 -04:00
40_fs_events.js	fix: share inotify fd across watchers (#26200 )	2024-10-23 09:22:58 +05:30
40_process.js	fix(node): Pass NPM_PROCESS_STATE to subprocesses via temp file instead of env var (#25896 )	2024-09-27 12:35:37 -07:00
40_signals.js	fix(runtime): use more null proto objects (#23921 )	2024-05-23 00:03:35 +02:00
40_tty.js	chore(tty): soft-remove `Deno.isatty()` (#25410 )	2024-09-04 18:12:11 +10:00
41_prompt.js	refactor: migrate extensions to virtual ops module (#22135 )	2024-01-26 23:46:46 +01:00
90_deno_ns.js	chore: cleanup unused deprecated code (#25839 )	2024-09-26 02:21:38 +02:00
98_global_scope_shared.js	refactor: cleanup unstable checks for WebGPU, FFI and FS APIs (#25586 )	2024-09-12 12:27:16 +00:00
98_global_scope_window.js	chore: cleanup remaining `internals.future` code (#25624 )	2024-09-16 09:28:35 +10:00
98_global_scope_worker.js	fix(runtime): use more null proto objects again (#25040 )	2024-09-06 12:52:59 +02:00
99_main.js	fix: performance.timeOrigin (#26787 )	2024-11-08 23:20:24 +01:00
README.md	chore: fix outdated note in `runtime/js/README.md` (#23673 )	2024-05-05 01:30:53 +00:00

README.md

Runtime JavaScript Code

This directory contains Deno runtime code written in plain JavaScript.

Each file is an ES module and is prefixed with a number, telling in which order scripts should be loaded into V8 isolate.

Deno Web APIs

This directory facilities Web APIs that are available in Deno.

Please note, that some implementations might not be completely aligned with specification.

Some Web APIs are using ops under the hood, eg. console, performance.

Implemented Web APIs

Blob: for representing opaque binary data.
Console: for logging purposes.
CustomEvent, EventTarget and EventListener: to work with DOM events.
- Implementation notes: There is no DOM hierarchy in Deno, so there is no tree for Events to bubble/capture through.
fetch, Request, Response, Body and Headers: modern Promise-based HTTP Request API.
location and Location.
FormData: access to a multipart/form-data serialization.
Performance: retrieving current time with a high precision.
setTimeout, setInterval, clearTimeout: scheduling callbacks in future and clearInterval.
Stream for creating, composing, and consuming streams of data.
URL and URLSearchParams: to construct and parse URLSs.
Worker: executing additional code in a separate thread.
- Implementation notes: Blob URLs are not supported, object ownership cannot be transferred, posted data is serialized to JSON instead of structured cloning.