Node.js v4.4.7发布

看到Node.js这个名字，初学者可能会误以为这是一个Javascript应用，事实上，Node.js采用C++语言编写而成，是一个Javascript的运行环境。为什么采用C++语言呢？据Node.js创始人Ryan Dahl回忆，他最初希望采用Ruby来写Node.js，但是后来发现Ruby虚拟机的性能不能满足他的要求，后来他尝试采用V8引擎，所以选择了C++语言。既然不是Javascript应用，为何叫.js呢？因为Node.js是一个Javascript的运行环境。Node.js是一个后端的Javascript运行环境（支持的系统包括Linux、Windows和Mac等），这意味着你可以编写系统级或者服务器端的Javascript代码，交给Node.js来解释执行，Node.js采用了Google Chrome浏览器的V8引擎，性能很好，同时还提供了很多系统级的API，如文件操作、网络编程等。浏览器端的Javascript代码在运行时会受到各种安全性的限制，对客户系统的操作有限。相比之下，Node.js则是一个全面的后台运行时，为Javascript提供了其他语言能够实现的许多功能。

更新日志

Notable Changes

• debugger:
  • All properties of an array (aside from length) can now be printed in the repl (cjihrig) #6448
• npm:
  • Upgrade npm to 2.15.8 (Rebecca Turner) #7412
• stream:
  • Fix for a bug that became more prevalent with the stream changes that landed in v4.4.5. (Anna Henningsen) #7160
• V8:
  • Fix for a bug in crankshaft that was causing crashes on arm64 (Myles Borins) #7442
  • Add missing classes to postmortem info such as JSMap and JSSet (evan.lucas) #3792

Commits

• [87cdb83a96] - benchmark: merge url.js with url-resolve.js (Andreas Madsen) #5177
• [921e8568d5] - benchmark: move misc to categorized directories (Andreas Madsen) #5177
• [c189eec14e] - benchmark: fix configuation parameters (Andreas Madsen) #5177
• [58ad451f0b] - benchmark: move string-decoder to its own category (Andreas Madsen) #5177
• [a01caa3166] - build: don't compile with -B, redux (Ben Noordhuis) #6650
• [37606caeaf] - build: don't compile with -B (Ben Noordhuis) #6393
• [64fb7a1929] - build: update android-configure script for npm (Robert Chiras) #6349
• [43ce6fc8d2] - build: fix DESTCPU detection for binary target (Richard Lau) #6310
• [6dfe7aeed5] - cares: Support malloc(0) scenarios for AIX (Gireesh Punathil) #6305
• [2389006720] - debugger: display array contents in repl (cjihrig) #6448
• [1c6809ce75] - debugger: introduce exec method for debugger (Jackson Tian)
• [200b3ca9ed] - deps: upgrade npm in LTS to 2.15.8 (Rebecca Turner) #7412
• [49921e8819] - deps: backport 102e3e87e7 from V8 upstream (Myles Borins) #7442
• [de00f91041] - deps: backport bc2e393 from v8 upstream (evan.lucas) #3792
• [1549899531] - dgram,test: add addMembership/dropMembership tests (Rich Trott) #6753
• [0ba3c2ca66] - doc: fix layout problem in v4 changelog (Myles Borins) #7394
• [98469ad84d] - doc: correct args for cluster message event (Colin Ihrig) #7297
• [67863f110b] - doc: update licenses (Myles Borins) #7127
• [c31eaad42d] - doc: clarify buffer class (Steve Mao) #6914
• [e0dd476fe5] - doc: fix typos in timers topic to aid readability (Kevin Donahue) #6916
• [a8391bc9fc] - doc: add jhamhader to collaborators (Yuval Brik) #6946
• [22ca7b877b] - doc: add @othiym23 to list of collaborators (Forrest L Norvell) #6945
• [2c3c4e5819] - doc: reference list of language-specific globals (Anna Henningsen) #6900
• [5a1a0b5ed1] - doc: make the api doc print-friendly (Marian) #6748
• [03db88e012] - doc: add bengl to collaborators (Bryan English) #6921
• [fbf95dde94] - doc: Update DCO to v1.1 (William Kapke) #6353
• [f23a9c39c0] - doc: fix typo in Error.captureStackTrace (Mohsen) #6811
• [30ab6a890c] - doc: fix name to match git log (Robert Jefe Lindstaedt) #6880
• [2b0f40ca16] - doc: add note for fs.watch virtualized env (Robert Jefe Lindstaedt) #6809
• [3b461870be] - doc: Backport ee.once doc clarifications to 4.x. (Lance Ball) #7103
• [eadb7e5b20] - doc: subdivide TOC, add auxiliary links (Jeremiah Senkpiel) #6167
• [107839c5dd] - doc: no Node.js(1) (Jeremiah Senkpiel) #6167
• [401325f9e2] - doc: better example & synopsis (Jeremiah Senkpiel) #6167
• [c654184f28] - doc: remove link to Sign in crypto.md (Kirill Fomichev) #6812
• [3e9288e466] - doc: fix exec example in child_process (Evan Lucas) #6660
• [3d820e45b4] - doc: "a" -> "an" in api/documentation.md (Anchika Agarwal) #6689
• [352496daa2] - doc: move the readme newcomers section (Jeremiah Senkpiel) #6681
• [ac6b921ce5] - doc: mention existence/purpose of module wrapper (Matt Harrison) #6433
• [97d1fc0fc6] - doc: improve onboarding-extras.md formatting (Jeremiah Senkpiel) #6548
• [c9b144ddd4] - doc: linkify remaining references to fs.Stats object (Kevin Donahue) #6485
• [d909c25a33] - doc: fix the lint of an example in cluster.md (yorkie) #6516
• [21d02f460f] - doc: add missing underscore for markdown italics (Kevin Donahue) #6529
• [18ecc779bb] - doc: ensure consistent grammar in node.1 file (justshiv) #6426
• [52d9e7b61d] - doc: fix a typo in __dirname section (William Luo) #6473
• [de20235235] - doc: remove all scrollbar styling (Claudio Rodriguez) #6479
• [a6f45b4eda] - doc: Remove extra space in REPL example (Juan) #6447
• [feda15b2b8] - doc: update build instructions for OS X (Rich Trott) #6309
• [3d1a3e4a30] - doc: change references to Stable to Current (Myles Borins) #6318
• [e28598b1ef] - doc: update authors (James M Snell) #6373
• [0f3a94acbd] - doc: add JacksonTian to collaborators (Jackson Tian) #6388
• [d7d54c8fd2] - doc: add Minqi Pan to collaborators (Minqi Pan) #6387
• [83721c6fd2] - doc: add eljefedelrodeodeljefe to collaborators (Robert Jefe Lindstaedt) #6389
• [b112fd1b4e] - doc: add ronkorving to collaborators (ronkorving) #6385
• [ac60d9cc86] - doc: add estliberitas to collaborators (Alexander Makarenko) #6386
• [435cd56de5] - doc: DCO anchor that doesn't change (William Kapke) #6257
• [7d8141dd1b] - doc: add stefanmb to collaborators (Stefan Budeanu) #6227
• [6dfc96326d] - doc: add iWuzHere to collaborators (Imran Iqbal) #6226
• [3dbcc73159] - doc: add santigimeno to collaborators (Santiago Gimeno) #6225
• [ae3eb24a3d] - doc: add addaleax to collaborators (Anna Henningsen) #6224
• [46ee7bb4ba] - doc: fix incorrect references in buffer docs (Amery) #6194
• [e3f78eb7c1] - doc: improve rendering of v4.4.5 changelog entry (Myles Borins) #6958
• [bac87d01d9] - gitignore: adding .vs/ directory to .gitignore (Mike Kaufman) #6070
• [93f2314dc2] - gitignore: ignore VS 2015 *.VC.opendb files (Mike Kaufman) #6070
• [c98aaf59bf] - http: speed up checkIsHttpToken (Jackson Tian) #4790
• [552e25cb6b] - lib,test: update in preparation for linter update (Rich Trott) #6498
• [aaeeec4765] - lib,test,tools: alignment on variable assignments (Rich Trott) #6869
• [b3acbc5648] - net: replace defineGetter with defineProperty (Fedor Indutny) #6284
• [4c1eb5bf03] - repl: create history file with mode 0600 (Carl Lei) #3394
• [90306bb81d] - src: use size_t for http parser array size fields (Ben Noordhuis) #5969
• [af41a63d0f] - src: replace ARRAY_SIZE with typesafe arraysize (Ben Noordhuis) #5969
• [037291e31f] - src: make sure Utf8Value always zero-terminates (Anna Henningsen) #7101
• [a08a0179e9] - stream: ensure awaitDrain is increased once (David Halls) #7292
• [b73ec46dcb] - stream: reset awaitDrain after manual .resume() (Anna Henningsen) #7160
• [55319fe798] - stream_base: expose bytesRead getter (Fedor Indutny) #6284
• [0414d882ce] - test: fix test-net-* error code check for getaddrinfo(3) (Natanael Copa) #5099
• [be0bb5f5fc] - test: fix unreliable known_issues test (Rich Trott) #6555
• [ab50e82f42] - test: fix test-process-exec-argv flakiness (Santiago Gimeno) #7128
• [4e38655d5f] - test: refactor test-tls-reuse-host-from-socket (Rich Trott) #6756
• [1c4549a31e] - test: fix flaky test-stdout-close-catch (Santiago Gimeno) #6808
• [3b94e31245] - test: robust handling of env for npm-test-install (Myles Borins) #6797
• [4067cde7ee] - test: abstract skip functionality to common (Jeremiah Senkpiel) #7114
• [8b396e3d71] - test: fix test-debugger-repl-break-in-module (Rich Trott) #6686
• [847b29c050] - test: fix test-debugger-repl-term (Rich Trott) #6682
• [1d68bdbe3f] - test: fix error message checks in test-module-loading (James M Snell) #5986
• [7e739ae159] - test,tools: adjust function argument alignment (Rich Trott) #7100
• [216486c2b6] - tools: lint for function argument alignment (Rich Trott) #7100
• [6a76485ad7] - tools: update ESLint to 2.9.0 (Rich Trott) #6498
• [a31153c02c] - tools: remove the minifying logic (Sakthipriyan Vairamani) #6636
• [10bd1a73fd] - tools: fix license-builder.sh again for ICU (Steven R. Loomis) #6068
• [0f6146c6c0] - tools: add tests for the doctool (Ian Kronquist) #6031
• [cc3645cff3] - tools: lint for alignment of variable assignments (Rich Trott) #6869

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