令和最新版TypeScriptでのnpmパッケージ開発

-:$PSQPSBUJPO ྩ࿨࠷৽൛5ZQF4DSJQUͰͷ OQNύοέʔδ։ൃ PEBO -*/&ϠϑʔגࣜձࣾϑϩϯτΤϯυΤϯδχΞ

-:$PSQPSBUJPO w ͓࢓ࣄ-*''4%,΍-*/&ϩάΠϯͷ ϑϩϯτΤϯυ։ൃ w ݉຿ઌϑϩϯτΤϯυܥͷ ΧϯϑΝϨϯεͷڠࢍࢧԉ w 5XJUUFS!PEBO
PEBO -*/&Ϡϑʔגࣜձࣾ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ొஃͷϞνϕʔγϣϯ w ࢓ࣄͰOQNύοέʔδ΍044ͷϝϯςφϯεΛ୲౰ w طଘͷOQNύοέʔδͷϝϯςφϯε w ৽نίϯϙʔωϯτϥΠϒϥϦͷ্ཱͪ͛
w ͜͜਺೥ʹى͖ͨ5ZQF4DSJQUΛ࢖ͬͨύοέʔδ։ൃʹؔ͢ΔมԽ w &$."4DSJQU.PEVMFT &4. ͷීٴ w ৽͍͠τϥϯεύΠϥͷొ৔ FTCVJME 48$ w ৽͍͠ϨδετϦͷొ৔ +43 w ৽͍͠ϥϯλΠϜͷొ৔ %FOP #VO w ʮ͜ͷύλʔϯʹ͸͜ͷߏ੒͕ྑͦ͞͏ʯͱ͍͏࿩Λܦݧ΍࣌୅ͷมԽΛ౿·͑ͯҰ෦ڞ༗͍ͨ͠

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ࠓ೔࿩͢͜ͱ w ύοέʔδͷઃܭ w τϥϯεύΠϥόϯυϥͷબ୒ͷج४

-:$PSQPSBUJPO ύοέʔδͷઃܭ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ύοέʔδͷछྨ w $PNNPO+4 $+4 /PEFKTैདྷͷϞδϡʔϧγεςϜ w SFRVJSFͰଞͷϑΝΠϧΛϩʔυ͢Δ΍ͭ
w &$."4DSJQU.PEVMFT &4. &4Ͱಋೖ͞ΕͨϞδϡʔϧγεςϜ w JNQPSUͰଞͷϑΝΠϧΛϩʔυ͢Δ΍ͭ w GBVY&4.&4.ܗࣜͷϑΝΠϧΛ$+4ܗࣜʹม׵࣮ͯ͠ߦ͢Δํࣜ w 1VSF&4.&4.͚ͩΛఏڙ͢Δύοέʔδ w %VBM1BDLBHF$+4ͱ&4.ͷ྆ํΛఏڙ͢Δύοέʔδ Ҿ༻IUUQTHJUIVCDPNXPPPSNOQNFTNWTDKT

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ύοέʔδͷछྨͷτϨϯυ w ϙϐϡϥʔͳOQNύοέʔδͷγΣΞ཰ͷมԽ w िʹສճҎ্μ΢ϯϩʔυ͞Ε͍ͯΔ w Ҏ্ͷύοέʔδʹґଘ͞Ε͍ͯΔ
w ೥લͱൺ΂ͯ1VSF&4. %VBM1BDLBHF͸ ϙΠϯτ૿Ճ Ҿ༻IUUQTHJUIVCDPNXPPPSNOQNFTNWTDKT 6 .1 % 6 .1 % 1 .7 % 1 .7 % 14.8% 14.8% 77.4% 77.4% 2021-08-24 2021-08-24 7 .3 % 7 .3 % 2 .1 % 2 .1 % 14.3% 14.3% 76.3% 76.3% 2021-11-09 2021-11-09 7 .7 % 7 .7 % 2 .6 % 2 .6 % 14.2% 14.2% 75.4% 75.4% 2022-01-27 2022-01-27 8 .7 % 8 .7 % 3 .6 % 3 .6 % 13.8% 13.8% 73.9% 73.9% 2022-08-01 2022-08-01 9 .0 % 9 .0 % 3 .8 % 3 .8 % 13.7% 13.7% 73.6% 73.6% 2022-11-04 2022-11-04 9 .3 % 9 .3 % 4 .2 % 4 .2 % 14.1% 14.1% 72.4% 72.4% 2023-02-06 2023-02-06 10 .1 % 10 .1 % 6 .7 % 6 .7 % 12 .5 % 12 .5 % 70.7% 70.7% 2023-05-29 2023-05-29 10 .2 % 10 .2 % 7 .1 % 7 .1 % 13 .2 % 13 .2 % 69.5% 69.5% 2023-08-24 2023-08-24 10 .8 % 10 .8 % 7 .5 % 7 .5 % 12 .9 % 12 .9 % 68.8% 68.8% 2023-11-22 2023-11-22 11 .7 % 11 .7 % 8 .4 % 8 .4 % 12 .7 % 12 .7 % 67.2% 67.2% 2024-02-20 2024-02-20 11 .6 % 11 .6 % 10 .5 % 10 .5 % 11 .7 % 11 .7 % 66.2% 66.2% 2024-05-27 2024-05-27 12 .1 % 12 .1 % 11 .5 % 11 .5 % 11 .5 % 11 .5 % 65.0% 65.0% 2024-08-28 2024-08-28 11 .6 % 11 .6 % 14.2% 14.2% 10 .4 % 10 .4 % 63.7% 63.7% 2024-11-27 2024-11-27 10 .8 % 10 .8 % 17.9% 17.9% 10 .1 % 10 .1 % 61.2% 61.2% 2025-02-28 2025-02-28 esm esm dual dual faux faux cjs cjs

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO &4.αϙʔτͷ֦େ w /PEFKT w &4.ͷ࣮ߦΛαϙʔτ w lUZQFzlNPEVMFz
w $+4ͰͷSFRVJSF FTN Λαϙʔτ ࣮ݧత w FYQFSJNFOUBMSFRVJSFNPEVMF w 5ZQF4DSJQU w NPEVMFΦϓγϣϯʹOPEFOPEFOFYUͷ௥Ճ w ৽نύοέʔδ͸1VSF&4.Ͱఏڙͯ͠΋໰୊ͳ͍࣌୅͕͍͍ۙͮͯΔ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO FYQPSUTΛ࢖ͬͨύοέʔδઃܭ w QBDLBHFKTPOʹFYQPSUTϑΟʔϧυ͕௥Ճ͞Εͨ w &4.༻ɺ$+4༻ɺܕఆٛ༻ɺ։ൃ༻ͳͲ໨తʹԠͯ͡+4ϑΝΠϧ΍54ϑΝΠϧΛग़͠෼͚ w 4VCQBUIFYQPSUT͕Մೳ
w JNQPSUlQLHOBNFz w JNQPSUlQLHOBNFDPSFz

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO FYQPSUTΛ࢖ͬͨύοέʔδઃܭ w ա৒ͳNPOPSFQPԽΛͤͣʹࡁΉ w l!QLHOBNFDPSFzͷ୅ΘΓʹlQLHOBNFDPSFzΛఏڙ w େن໛ͳϓϩδΣΫτҎ֎Ͱ͸NPOPSFQPʹ͢Δඞཁ͕ͳ͍
w աڈʹա৒ʹNPOPSFQPԽͨ͠ྫ w !QLHOBNFCVUUPO w !QLHOBNFTFMFDU w FUD w ա৒ͳNPOPSFQPԽʹΑΔϓϩδΣΫτͷෳࡶੑͷ૿ՃΛ๷͛Δ w ύοέʔδؒͷCVJME΍ςετͷґଘؔ܎ w ෳ਺ͷUTDPOGJH΍όϯυϥͷઃఆϑΝΠϧͷ؅ཧ

-:$PSQPSBUJPO τϥϯεύΠϥόϯυϥͷબ୒

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ৽͍͠τϥϯεύΠϥόϯυϥ w ৽͍͠τϥϯεύΠϥ w FTCVJMETXD w ৽͍͠όϯυϥ
w 7JUFUTVQVOCVJMESPMMEPXOUTEPXO

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO બ୒ͷج४ w τϥϯεύΠϥόϯυϥͷ໾ׂ w ೖྗ+4ϑΝΠϧ΍ͦΕҎ֎ͷϑΝΠϧ 54ϑΝΠϧɺ$44 ϑΝΠϧ
w ग़ྗॴఆͷܗࣜͷ+4ϑΝΠϧɺͦΕҎ֎ͷϑΝΠϧ w େ͖ͳબ୒ͷج४ w ೖྗ w +4ϑΝΠϧ΍54ϑΝΠϧ͚ͩ w ଞʹ$44ϑΝΠϧ΍47(ϑΝΠϧΛؚΉ w ରԠϞδϡʔϧ w 1VSF&4. w %VBM1BDLBHF &4. $+4

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO બ୒ͷج४ ྫ ೖྗϑΝΠϧ ରԠϞδϡʔϧ UTD γϯϓϧͳOQN ϥΠϒϥϦ
+4΍54ϑΝΠϧ͚ͩ 1VSF&4. UTVQVOCVJMEUTEPXO γϯϓϧͳOQN ϥΠϒϥϦ +4΍54ϑΝΠϧ͚ͩ %VBM1BDLBHF 7JUF ίϯϙʔωϯτ ϥΠϒϥϦ $44΍47(ϑΝΠϧ΋ ؚΉ 1VSF&4.PS %VBM1BDLBHF

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO UTD͕ద੾ͳέʔε w ೖྗ+4ϑΝΠϧ΍54ϑΝΠϧ͚ͩ w ରԠϞδϡʔϧ1VSF&4. w ཧ༝
w %VBM1BDLBHFͩͱUTDPOGJHKTPO΍ग़ྗσΟϨΫτϦΛ ੾Γସ͑ͯෳ਺ճϏϧυ͢Δख͕ؒඞཁ w ରԠϞδϡʔϧ͕1VSF&4.ͩͱγϯϓϧʹࡁΉ w ޙड़͢ΔUTVQͳͲͷґଘύοέʔδ͕૿͑ͳ͍

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO UTVQVOCVJMEUTEPXOͳͲ͕ద੾ͳέʔε w ೖྗ+4ϑΝΠϧ΍54ϑΝΠϧ͚ͩ w ରԠϞδϡʔϧ%VBM1BDLBHF w ཧ༝
w ؆୯ͳDPOGJHͭͰͭͷϞδϡʔϧʹରԠՄೳ w ࢓૊Έతʹ͸$44ϑΝΠϧ΍47(ϑΝΠϧ΋ѻ͑Δ͕͓͢͢Ί͠ͳ͍ ޙड़

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO 7JUF͕ద੾ͳέʔε w ೖྗ+4ϑΝΠϧ΍54ϑΝΠϧʹՃ͑ͯɺଞʹ$44ϑΝΠϧ΍47(ϑΝΠϧΛؚΉ w ରԠϞδϡʔϧ1VSF&4.PS%VBM1BDLBHF w ͭ·ΓίϯϙʔωϯτϥΠϒϥϦ
w ཧ༝ w ίϯϙʔωϯτϥΠϒϥϦ͸ಉ࣌ʹ4UPSZCPPLΛ࠾༻͕ͪ͠ w όϯυϧ΋7JUFͷ-JCSBSZ.PEFΛ࢖͑͹Մೳ w 1MVHJOΛ࢖͍ճͤΔ w $44ϑΝΠϧ΍47(ϑΝΠϧͳͲͷϑΝΠϧͷऔΓѻ͍͕౷ҰͰ͖Δ w UTVQ FTCVJME ͱ7JUF SPMMVQ Λซ༻ͨ͠ͱ͖ʹϋϚͬͨ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO UTVQͱ7JUFͷซ༻ͰϋϚΔέʔε w 47(ϑΝΠϧΛจࣈྻͱͯ͠JNQPSU w 7JUF͸JNQPSUlJDPOTWH SBXz w
UTVQ͸UTVQDPOGJHUTͷMPBEFSʹlTWHzlUFYUzΛࢦఆ w 4$44ϑΝΠϧͷJNQPSU w UTVQ FTCVJME ͸1MVHJOͳ͠ʹ͸ະαϙʔτ w όϯυϥ͝ͱʹJNQPSUͷ࣮૷΍αϙʔτঢ়گ͕ҟͳΔέʔε͕͋Δ w ౷Ұͨ͠ํ͕ແ೉ w VOCVJME͸SPMMVQϕʔεͷπʔϧͳͷͰ7JUFͱ਌࿨ੑ͸͋Δ͕౷ҰͰ͖ΔͳΒͨ͠ํ͕ྑ͍

-:$PSQPSBUJPO ·ͱΊ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ·ͱΊ w ·ͣ࠷ॳʹ1VSF&4.ͳύοέʔδΛݕ౼ w τϥϯεύΠϧόϯυϧʹUTDΛ࠾༻ w $+4΋αϙʔτͯ͠%VBM1BDLBHFʹ͍ͨ͠৔߹
w UTVQVOCVJMEUTEPXOͳͲΛݕ౼ w ίϯϙʔωϯτϥΠϒϥϦͷ৔߹͸7JUFΛݕ౼ w 4UPSZCPPLͱͷ૬ੑ͕͍͍ w FYQPSUTϑΟʔϧυΛ׆༻͠NPOPSFQPͷ࠾༻ΛͰ͖ΔݶΓݟૹΔ͜ͱͰ ϓϩδΣΫτߏ੒Λγϯϓϧʹอͭ w ࡉ͔͍UTDPOGJHͷઃఆ΍ศརπʔϧʹ͍ͭͯ࿩଍Γͳ͔ͬͨͷͰ࠙਌ձͰͥͻ࿩͍ͨ͠ʂ

令和最新版TypeScriptでのnpmパッケージ開発

令和最新版TypeScriptでのnpmパッケージ開発

LINEヤフーTech (LY Corporation Tech)
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-:$PSQPSBUJPO ྩ࿨࠷৽൛5ZQF4DSJQUͰͷ OQNύοέʔδ։ൃ PEBO -*/&ϠϑʔגࣜձࣾϑϩϯτΤϯυΤϯδχΞ

-:$PSQPSBUJPO w ͓࢓ࣄ-''4%,΍-/&ϩάΠϯͷ ϑϩϯτΤϯυ։ൃ w ݉຿ઌϑϩϯτΤϯυܥͷ ΧϯϑΝϨϯεͷڠࢍࢧԉ w 5XJUUFS!PEBO

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ొஃͷϞνϕʔγϣϯ w ࢓ࣄͰOQNύοέʔδ΍044ͷϝϯςφϯεΛ୲౰ w طଘͷOQNύοέʔδͷϝϯςφϯε w ৽نίϯϙʔωϯτϥΠϒϥϦͷ্ཱͪ͛

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ࠓ೔࿩͢͜ͱ w ύοέʔδͷઃܭ w τϥϯεύΠϥόϯυϥͷબ୒ͷج४

-:$PSQPSBUJPO ύοέʔδͷઃܭ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ύοέʔδͷछྨ w $PNNPO+4 $+4 /PEFKTैདྷͷϞδϡʔϧγεςϜ w SFRVJSFͰଞͷϑΝΠϧΛϩʔυ͢Δ΍ͭ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ύοέʔδͷछྨͷτϨϯυ w ϙϐϡϥʔͳOQNύοέʔδͷγΣΞ཰ͷมԽ w िʹສճҎ্μ΢ϯϩʔυ͞Ε͍ͯΔ w Ҏ্ͷύοέʔδʹґଘ͞Ε͍ͯΔ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO &4.αϙʔτͷ֦େ w /PEFKT w &4.ͷ࣮ߦΛαϙʔτ w lUZQFzlNPEVMFz

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO FYQPSUTΛ࢖ͬͨύοέʔδઃܭ w QBDLBHFKTPOʹFYQPSUTϑΟʔϧυ͕௥Ճ͞Εͨ w &4.༻ɺ$+4༻ɺܕఆٛ༻ɺ։ൃ༻ͳͲ໨తʹԠͯ͡+4ϑΝΠϧ΍54ϑΝΠϧΛग़͠෼͚ w 4VCQBUIFYQPSUT͕Մೳ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO FYQPSUTΛ࢖ͬͨύοέʔδઃܭ w ա৒ͳNPOPSFQPԽΛͤͣʹࡁΉ w l!QLHOBNFDPSFzͷ୅ΘΓʹlQLHOBNFDPSFzΛఏڙ w େن໛ͳϓϩδΣΫτҎ֎Ͱ͸NPOPSFQPʹ͢Δඞཁ͕ͳ͍

-:$PSQPSBUJPO τϥϯεύΠϥόϯυϥͷબ୒

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ৽͍͠τϥϯεύΠϥόϯυϥ w ৽͍͠τϥϯεύΠϥ w FTCVJMETXD w ৽͍͠όϯυϥ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO બ୒ͷج४ w τϥϯεύΠϥόϯυϥͷ໾ׂ w ೖྗ+4ϑΝΠϧ΍ͦΕҎ֎ͷϑΝΠϧ 54ϑΝΠϧɺ$44 ϑΝΠϧ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO બ୒ͷج४ ྫ ೖྗϑΝΠϧ ରԠϞδϡʔϧ UTD γϯϓϧͳOQN ϥΠϒϥϦ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO UTD͕ద੾ͳέʔε w ೖྗ+4ϑΝΠϧ΍54ϑΝΠϧ͚ͩ w ରԠϞδϡʔϧ1VSF&4. w ཧ༝

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO UTVQVOCVJMEUTEPXOͳͲ͕ద੾ͳέʔε w ೖྗ+4ϑΝΠϧ΍54ϑΝΠϧ͚ͩ w ରԠϞδϡʔϧ%VBM1BDLBHF w ཧ༝

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO 7JUF͕ద੾ͳέʔε w ೖྗ+4ϑΝΠϧ΍54ϑΝΠϧʹՃ͑ͯɺଞʹ$44ϑΝΠϧ΍47(ϑΝΠϧΛؚΉ w ରԠϞδϡʔϧ1VSF&4.PS%VBM1BDLBHF w ͭ·ΓίϯϙʔωϯτϥΠϒϥϦ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO UTVQͱ7JUFͷซ༻ͰϋϚΔέʔε w 47(ϑΝΠϧΛจࣈྻͱͯ͠JNQPSU w 7JUF͸JNQPSUlJDPOTWH SBXz w

-:$PSQPSBUJPO ·ͱΊ

*OUFSOBM6TF0OMZ -:$PSQPSBUJPO ·ͱΊ w ·ͣ࠷ॳʹ1VSF&4.ͳύοέʔδΛݕ౼ w τϥϯεύΠϧόϯυϧʹUTDΛ࠾༻ w $+4΋αϙʔτͯ͠%VBM1BDLBHFʹ͍ͨ͠৔߹