内容简介:Node.js 3.1.0 发布,Node.js 和 io.js 合并进程详情请看io.js 3.1.0 改进详情请看这里:io.js 3.0 值得关注的改进:
Node.js 3.1.0 发布,Node.js 和 io.js 合并进程详情请看 这里 。
io.js 3.1.0 改进详情请看这里: https://github.com/nodejs/node/compare/v3.1.0...master 。
io.js 3.0 值得关注的改进:
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buffer:
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Due to changes in V8, it has been necessary to reimplement
Bufferon top of V8'sUint8Array. Every effort has been made to minimize the performance impact, howeverBufferinstantiation is measurably slower. Access operations may be faster in some circumstances but the exact performance profile and difference over previous versions will depend on howBufferis used within applications. (Trevor Norris) #1825 . -
Buffercan now takeArrayBuffers as a constructor argument (Trevor Norris) #2002 . -
When a single buffer is passed to
Buffer.concat(), a new, copiedBufferobject will be returned; previous behavior was to return the originalBufferobject (Sakthipriyan Vairamani) #1937 . -
build: PPC support has been added to core to allow compiling on pLinux BE and LE (AIX support coming soon) (Michael Dawson) #2124 .
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dgram: If an error occurs within
socket.send()and a callback has been provided, the error is only passed as the first argument to the callback and not emitted on thesocketobject; previous behavior was to do both (Matteo Collina & Chris Dickinson) #1796 -
freelist: Deprecate the undocumented
freelistcore module (Sakthipriyan Vairamani) #2176 . -
http:
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Status codes now all use the official IANA names as per RFC7231 , e.g.
http.STATUS_CODES[414]now returns'URI Too Long'rather than'Request-URI Too Large'(jomo) #1470 . -
Calling .getName() on an HTTP agent no longer returns a trailing colon, HTTPS agents will no longer return an extra colon near the middle of the string (Brendan Ashworth) #1617 .
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node:
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NODE_MODULE_VERSIONhas been bumped to45to reflect the break in ABI (Rod Vagg) #2096 . -
Introduce a new
process.releaseobject that contains anameproperty set to'io.js'andsourceUrl,headersUrlandlibUrl(Windows only) properties containing URLs for the relevant resources; this is intended to be used by node-gyp (Rod Vagg) #2154 . -
The version of node-gyp bundled with io.js now downloads and uses a tarball of header files from iojs.org rather than the full source for compiling native add-ons; it is hoped this is a temporary floating patch and the change will be upstreamed to node-gyp soon (Rod Vagg) #2066 .
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repl: Persistent history is now enabled by default. The history file is located at ~/.node_repl_history, which can be overridden by the new environment variable
NODE_REPL_HISTORY. This deprecates the previousNODE_REPL_HISTORY_FILEvariable. Additionally, the format of the file has been changed to plain text to better handle file corruption. (Jeremiah Senkpiel) #2224 . -
smalloc: The
smallocmodule has been removed as it is no longer possible to provide the API due to changes in V8 (Ben Noordhuis) #2022 . -
tls: Add
server.getTicketKeys()andserver.setTicketKeys()methods for TLS session key rotation (Fedor Indutny) #2227 . -
v8: Upgraded to 4.4.63.26
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ES6: Enabled computed property names
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ES6:
Arraycan now be subclassed in strict mode -
ES6: Implement rest parameters in staging, use the
--harmony-rest-parameterscommand line flag -
ES6: Implement the spread operator in staging, use the
--harmony-spreadcallscommand line flag -
Removed
SetIndexedPropertiesToExternalArrayDataand related APIs, forcing a shift toBufferto be reimplemented based onUint8Array -
Introduction of
MaybeandMaybeLocalC++ API for objects which may or may not have a value. -
Added support for PPC
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神经网络与机器学习(原书第3版)
[加] Simon Haykin / 申富饶、徐烨、郑俊、晁静 / 机械工业出版社 / 2011-3 / 79.00元
神经网络是计算智能和机器学习的重要分支,在诸多领域都取得了很大的成功。在众多神经网络著作中,影响最为广泛的是Simon Haykin的《神经网络原理》(第3版更名为《神经网络与机器学习》)。在本书中,作者结合近年来神经网络和机器学习的最新进展,从理论和实际应用出发,全面、系统地介绍了神经网络的基本模型、方法和技术,并将神经网络和机器学习有机地结合在一起。 本书不但注重对数学分析方法和理论的探......一起来看看 《神经网络与机器学习(原书第3版)》 这本书的介绍吧!