東京Node学園祭2016で話したブッキングテーブルのやつ
3FBDUXJUI3FEVYʹΑΔେن༻αʔϏεͷ։ൃ౦ژ/PEFֶԂࡇ݄٢ాঘ߂ϦΫϧʔτςΫϊϩδʔζϦΫϧʔτϥΠϑελΠϧ
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ը໘ຖͷ+4ׂ{require.ensure([], function (require) {cb(null, require(‘Componentͷύε’).default);},’jsͷϑΝΠϧ໊’);}} />SFBDUSPVUFSͱXFCQBDLͷSFRVJSFFOTVSFΛΈ߹Θ࣮ͤͯݱՄೳSFRVJSFFOTVSFΛίʔυʹهࡌͯ͠Ϗϧυ͢ΔͱKTׂ͕͞ΕΔ3PVUFͷHFU$PNQPOFOUͰهࡌ͢Δ͜ͱͰը໘ຖʹׂՄ#FGPSF"GUFSplugins: [new CommonsChunkPlugin(‘chunkmanifest’,'chunkmanifest-[chunkhash].js', 2),],ϧʔςΟϯάఆׂٛͨ͠KTͷಈతϩʔυͷઃఆ
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ࢀߟɿQMVHJOΛࣗ࡞ͯ͠ΈΔfunction OptimizeModulerOrderPlugin(entryPriority) { this.entryPriority = entryPriority; } OptimizeModulerOrderPlugin.prototype.apply = function(compiler) { var ep = this.entryPriority; compiler.plugin("compilation", function(compilation) { compilation.plugin("optimize-module-order", function(modules) { modules.sort(function(a, b) { var achunk = a.chunks.length === 1 ? a.chunks[0].name : null; var bchunk = b.chunks.length === 1 ? b.chunks[0].name : null; if(!achunk && !bchunk) return 0;for(var i = 0; i < ep.length; i++){ if(achunk === ep[i] && bchunk !== ep[i]) return -1;if(bchunk === ep[i] && achunk !== ep[i]) return 1;if(achunk === ep[i] && bchunk === ep[i]){ if (a.identifier() > b.identifier()) return 1; if (a.identifier() < b.identifier()) return -1; if (a.identifier() === b.identifier()) {if(a.index > b.index) return 1; if(a.index < b.index) return -1;return 0;} } } return 0; });ҾͷDIVOLͷఆٛॱʹैͬͯNPEVMF*Eͷ༏ઌΛܾఆ͢ΔTDPEFॴଐͷNPEVMF͕࠷༏ઌɺ͕࣍WFOEPSɺ࠷ޙ͕NBJOnew OptimizeModuleOrderPlugin([‘scode’,’vendor’,’main’])
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1FSGPSNBODFRPS : 17.02ϨεϙϯελΠϜฏۉ:578 msecRenderToStringͷ࣌ؒ: 60 ~ 80 msec2,893 Component˞BCODͰܭଌͨ݁͠Ռ˞.BD#PPL1SP ()[*OUFM$PSFJ /PEFW˞"1*ίʔϧআ͍ͨ݁Ռ
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1BSUJBM3FOEFSJOH4FSWFS "1*#SPXTFSᶄ%BUB'FUDIᶆ)5.-ฦ٫ᶃIUUQTCPPLJOHUBCMFKQϒοΩϯάςʔϒϧͰ-B[Z-PBEͰͳ͘-B[Z3FOEFSΛߦ͏443ͱ13ͷΓସ͑Λ༻ҙʹ͢ΔͨΊᶅ3FBDU%0.4FSWFSSFOEFS5P4USJOHSFOEFS3FBEZGBMTFʹ͢ΔεΫϩʔϧ෦SFOEFS3FBEZUSVF ͡Όͳ͍ͱSFOEFS͞Εͳ͍Α͏ʹ࣮͓ͯ͘͠pSTUWJFXpSTUWJFXᶇ3FBDU%0.SFOEFSᶈ3FBDU%0.SFOEFSͷίʔϧόοΫͰSFOEFS3FBEZUSVFʹ͢ΔBDUJPOΛEJTQBUDIpSTUWJFXQBHFQBHF
1BSUJBM3FOEFSJOHRPS : 17.02 -> 62.64ϨεϙϯελΠϜฏۉ:578 -> 150 msecRenderToStringͷ࣌ؒ: 60 ~ 80 -> 10 ~ 20 msec2,893 -> 359 Component
b'FUDIBT(PPHMF`ͷ݁Ռ1BSUJBM3FOEFSJOHͰεΫϩʔϧҎԼؚΊશίϯςϯπೝࣝ ˞'JSTU7JFX͕ͳ͍௨ৗͷ41"Ͱ$43ޙͷίϯςϯπ͕ೝࣝ
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443$BDIF1BSUJBM3FOEFSJOHͱಉ༷ʹ-B[Z3FOEFS4FSWFS "1*#SPXTFSᶃIUUQTCPPLJOHUBCMFKQᶄ%BUB'FUDI-36$BDIFᶅ3FBDU%0.4FSWFSSFOEFS5P4USJOH PSΩϟογϡ͔ΒऔಘQBHFᶆ)5.-ฦ٫ QBHFQBHFᶇ3FBDU%0.SFOEFSᶈ3FBDU%0.SFOEFSͷίʔϧόοΫͰVTFS3FOEFS3FBEZUSVFʹ͢ΔBDUJPOΛEJTQBUDIVTFS3FOEFS3FBEZGBMTFʹ͢ΔϢʔβใSFOEFS3FBEZUSVF ͡Όͳ͍ͱSFOEFS͞Εͳ͍Α͏ʹ࣮͓ͯ͘͠
ࢀߟɿ$PNQPTJUF3FOEFSJOHҰఆ࣌ؒͷϦΫΤετʹԠͯ͡ಈతʹ3FOEFSJOHํࣜΛΓସ͑Δํࣜ௨ৗ࣌SFOEFS3FBEZUSVFʹ͓͖ͯ͠ߴෛՙ࣌GBMTFʹ͢ΔͳͲॠؒ෩ ը໘ಛੑ ϨϯμϦϯάํࣜখ 4FSWFS4JEF3FOEFSJOHதߴΩϟογϡώοτ443$BDIFதΩϟογϡώοτ1BSUJBM3FOEFSJOHߴ $MJFOU4JEF3FOEFSJOH
4VNNBSZϨϯμϦϯά ํࣜ/PEFෛՙ ద༻қ 69 4&0 උߟ$43 41"˕ ˕ º º443$BDIF˕˚Ϣʔβґଘ͔൱͔ͷ੍ޚɺUUMͷܾఆ˚ Ϣʔβใ͕ 'JSTU7JFXʹ͋Δ߹ͷ੍ޚ˕ߴΩϟογϡ ώοτ͕ߴ͍ Ϣʔβґଘใ͕গͳ͍͜ͱ1BSUJBM3FOEFSJOH˓˓ 'JSTU7JFX͔൱͔ͷ੍ޚ˕˓ +4ରԠ͍ͯ͠ͳ͍ΫϩʔϥΛߟྀ͢Δ͔443 ˚ ˕ ˕ ˕
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