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近況報告とかLiveScript(オマケ)とか
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Ayumu Sato
November 03, 2012
Programming
1
510
近況報告とかLiveScript(オマケ)とか
大なごやJS Vol.4 発表資料(ぶん投げた内容で申し訳ない次第)
Ayumu Sato
November 03, 2012
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Transcript
ۙگใࠂͳͲ ؼলͨ͠ͷͰൃද͠·͢ EBJ/BHPZB+4WPM Saturday, November 3, 12
!BIPNV ϚʔΫΞοϓΤϯδχΞ גࣜձࣾαΠόʔΤʔδΣϯτ ॴଐ͗ͯ͢Α͘Θ͔Βͳ͍ ৄ͘͠IUUQBIPNV Saturday, November 3, 12
એͱ͍͏͔͓༠͍ #BDLCPOFKT"EWFOU$BMFOEBS IUUQXXXBEWFOUBSPSH DBMFOEBST ۭ͖·͘ΓͳͷͰμϨ͔ʂʂʂ Saturday, November 3, 12
ࠓ ౦ژʹస৬ˍҾͬӽͯ͠ϲ݄ ࣗͷৼΓฦΓ͔Ͷ͓ͯ࣌ؒΛഈआ ͶΉ͘ͳͬͨΒεϛϚηϯ Saturday, November 3, 12
ਃ͠༁ OFX ܕͳ͍Ͱ͢ Ϟϩʹ8FCܥͰ͢ ੜʑ͘͠+BWB4DSJQUॻ͘Α ͔͠͠۩ମతͳ࣮ͳ͍ʂ Saturday, November 3, 12
Θͨ͘͠͝ͱ Saturday, November 3, 12
+PCT ϓϩδΣΫτͷϑϩϯτ։ൃ ηϛφʔͷ४උ ࣾษڧձͷ։࠵ͱ͔ڭ׆ಈ ࣾπʔϧͷࡐྉूΊ FUD Saturday, November 3, 12
͍·࡞ͬͯΔͷ ίϛϡχςΟαʔϏε γϯάϧϖʔδΞϓϦ #BDLCPOFͱ".%Ͱɺ.71ͳײ͡ αʔόαΠυͷ"1*ઃܭ͝ʹΐΓ 1IPOF(BQӽ͠8FC7JFX Saturday, November 3, 12
*OUFSFTU ϑϩϯτ༻ͷࣗಈԽ +4FSͷੜ࢈ํ๏ ڭҭ Ϟδϡϥʔͳ+BWB4DSJQU ґଘཧ 3FRVJSFKT 4OPDLFUT ςετΒ-JOUΒ࣭ཧ Saturday,
November 3, 12
ϥΠϒϥϦͱ͔ πʔϧ͖͔ͩΒհ Saturday, November 3, 12
FH #BDLCPOFMPEBTI 3FRVJSFKT ;FQUP OFFENBLFCFPXO (SVOU MPDBMEFWFMPQNFOU +BTNJOF 4JOPO XJUI5FTUFN
1IBOUPNKT Saturday, November 3, 12
;FQUP ϑΝΠϧαΠζ͕খ͍͞ͷਖ਼ٛʂ K2VFSZޓͳ%0.CBTFE-JC Ϗϧυඞཁ pMUFSͱ͔GBEF*Oͱ͔ BKBYͷΓ%FGFSSFEͰͳ͍ Ұ෦͍ϝιουGPSLͯ͠վࡁ Saturday, November 3,
12
#BDLCPOFKT 7JFX͕ଠΔ ʅɹɾɹТɹɾɹA 3PVUFS7JFX.PEFMͷओै VOEFSTDPSFґଘMPEBTIͰஔ நԽͨ͠ϥούΛ࡞༧ఆ IUUQTHJUIVCDPNNBSJPOFUUFKTCBDLCPOFNBSJPOFUUF IUUQTHJUIVCDPNDIBQMJOKTDIBQMJO Saturday, November
3, 12
3FRVJSFKT ".% "TZODISPOPVT.PEVMF%FpOJUJPO Ϟδϡʔϧ୯ҐͰॻ͘ͷʹΑΖ͍͠ ίʔϧελοΫ͕ͭΒ͍ 1SPEVDUJPOBMNPOEͰݻΊΔ SFRVJSFKT͔Β"KBYྨΛൈ͍ͨͭ ܰྔ Saturday,
November 3, 12
+BTNJOF ͳΜ͔ͩΜͩͰৗ༻ϙδγϣϯ KBTNJOFBTZOD KBTNJOFKRVFSZ %0..BUDIFS 4JOPO 4UVC .PDL ৭ʑͯ͠UFTUFNͰճͯ͠Δ Saturday,
November 3, 12
(SVOU +4Ͱಈ͘ϙʔλϒϧͳϏϧυπʔϧ ࣗಈϏϧυྨͷҰݩԽ͘Μ -PDBM4FSWFSͱ-JWF3FMPBEͱ͔ OPEFͰλεΫॻ͚Δ͔ΒϥΫ ࣾͰڭதʢΘΓͱॱௐʣ Saturday, November 3, 12
1IBOUPNKT ओʹϔουϨεςετ༻ )"3 )551"SDIJWF औͬͯZTMPX ͰධՁɺͱ͔ଞͷ༻్ߟ͑த εΫϦʔϯΩϟϓνϟͱ͔ KTEPNͱ͔[PNCJFKT͋ΔͶ Saturday, November
3, 12
όϥϯεײ ͭͷ࣠ΛόϥϯεΑ͘ ͋ͨΒ͍ٕ͠ज़ख๏ΛֶͿ طଘͷރΕͨπʔϧΛ׆͔͢ ࣾͰγΣΞ͠ͳ͍ͱҙຯ͕ͳ͍ 3%ͷίετߴͭ͘͘ Saturday, November 3, 12
͜͜ͰऴΘΔͱ ͋Μ·ΓͳͷͰBMU+4 Saturday, November 3, 12
ߦ͖ͷόεͰௐͨ ษڧձυϦϰϯͳௐ Saturday, November 3, 12
-JWF4DSJQU IUUQMJWFTDSJQUOFU Saturday, November 3, 12
0WFSWJFX $PGGFF]$PDP]-JWF4DSJQU "EETNBOZGFBUVSFTUPBTTJTUJO GVODUJPOBMTUZMFQSPHSBNNJOH )BTNBOZJNQSPWFNFOUTGPS PCKFDUPSJFOUFEBOEJNQFSBUJWF QSPHSBNNJOH Saturday, November 3,
12
4UBOEBSE-JCSBSZ QSFMVEFMT IUUQHL[HJUIVCDPNQSFMVEFMT CBTFEJOQBSUPGGPGQSFMVEFIT BVUPNBUJDBMMZJNQPSU VTFEPSQSFMVEFPQUJPO QSFMVEFCSPXTFSNJOKT GPSCSPXTFS Saturday, November
3, 12
5FYU&EJUPS4VQQPSU WJNMT WJN MJWFTDSJQUNPEF FNBDT -JWF4DSJQUUNCVOEMF FUD GPS5FYU.BUF $IPDPMBU BOE4VCMJNF5FYU
8JMMCF4PVSDF.BQ Saturday, November 3, 12
(FUUJOH4UBSUFE Saturday, November 3, 12
Πϯετʔϧ % npm install -g LiveScript Saturday, November 3, 12
ରܕ % lsc --interactive --prelude livescript> [1 2 3] |>
map (* 2) |> sum 10 Saturday, November 3, 12
ίϯύΠϧ % lsc --prelude --output ./ file.ls # create ./file.js
Saturday, November 3, 12
4ZOUBY'FBUVSF Saturday, November 3, 12
ఆ > const SHOULD = 'BE' 'BE' > SHOULD =
'NOT' SyntaxError: redeclaration of constant "SHOULD" on line 1 Saturday, November 3, 12
෦ద༻ͱϝϯόΞΫηε > people = [{name: 'hoge'}, {name: 'fuga'}, {name: 'piyo'}]
> people |> map (.name) |> filter (in ['hoge', 'fuga']) [ 'hoge', 'fuga' ] Saturday, November 3, 12
είʔϓ > a = 123 123 > do -> a
= 456 456 > a 123 Saturday, November 3, 12
ԋࢉࢠ > unique [1, 1, 0] .length 2 > array
= [1, 1, 0] > unique array or not empty array # in coffee # (unique array) or not (empty array) Saturday, November 3, 12
แදه &4 1UZIPO )BTLFMMϥΠΫ livescript> [a * b for a
in [1, 2, 3] for b in [10, 20, 40]] [ 10, 20, 40, 20, 40, 80, 30, 60, 120 ] coffee> (a * b for a in [1, 2, 3] for b in [10, 20, 40]) [ [ 10, 20, 30 ], [ 20, 40, 60 ], [ 40, 80, 120 ] ] Saturday, November 3, 12
ύλʔϯϚον # func(n, list) Ͱ list ͷઌ಄͔Β n ݸฦ͢ #
list͕ۭͩͬͨΓn͕0ҎԼͰ͋Ε [] Λฦ͢ take (n,[x,...xs]:list) -> | n <= 0 => [] | empty list => [] | otherwise => [x] +++ take n - 1,xs Saturday, November 3, 12
ΧϦʔ > times = (x,y) --> x*y [Function] function (){
var params = args ? args.concat() : []; return params.push.apply(params, arguments) < f.length && arguments.length ? curry$.call(this, f, params) : f.apply(this, params); } > times 2,3 6 > double = times 2 > double 5 10 Saturday, November 3, 12
ฏ͍ͨBTZOD data <-! $.get 'ajaxtest' $ \.result .html data processed
<-! $.get 'ajaxprocess', data $ \.result .append processed $.get('ajaxtest', function(data){ $('.result').html(data); $.get('ajaxprocess', data, function(processed){ $('.result').append(processed); }); }); Saturday, November 3, 12
༨ஊ Saturday, November 3, 12
+BWB4DSJQUWJBXJLJQFEJB JavaScriptωοτεέʔϓίϛϡχέʔγϣϯζ ͷϒϨϯμϯɾΞΠΫʹΑͬͯ։ൃ͞ΕɺNetscape Navigator 2.0Ͱ࣮͞Εͨɻ։ൃॳ LiveScriptͱݺΕ͍͕ͯͨʢதུʣωοτεέʔ ϓͱαϯɾϚΠΫϩγεςϜζ͕ۀఏܞ͍ͯͨ͠ࣄ ͋ͬͨͨΊɺJavaScriptͱ͍͏໊લʹมߋ͞Εͨ Saturday, November
3, 12
"SUJDMFT 1BVM.JMMFSņ'VODUJPOBMQSPHSBNNJOHJO+BWB4DSJQU FDPTZTUFN IUUQQBVMNJMMSDPNQPTUTGVODUJPOBMQSPHSBNNJOHJOKBWBTDSJQUFDPTZTUFN 'VODUJPOBM1SPHSBNNJOHJO+BWB4DSJQUVTJOH-JWF4DSJQUBOE QSFMVEFMT IUUQHL[HJUIVCDPN-JWF4DSJQUCMPHGVODUJPOBMQSPHSBNNJOHJOKBWBTDSJQUVTJOHMJWFTDSJQUBOE QSFMVEFMTIUNM 3FBTPOTUP4XJUDIGSPN$PGGFF4DSJQUUP-JWF4DSJQU IUUQHL[HJUIVCDPN-JWF4DSJQUCMPHUFOSFBTPOTUPTXJUDIGSPNDPGGFFTDSJQUIUNM
1PXFSGVMK2VFSZXJUI-JWF4DSJQU IUUQMJWFTDSJQUOFUCMPHQPXFSGVMKRVFSZXJUIMJWFTDSJQUIUNM Saturday, November 3, 12
͓͠·͍ Saturday, November 3, 12