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TypeScriptを始めよう
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a-pompom
May 17, 2020
0
46
TypeScriptを始めよう
バーチャル勉強会の資料です。
gist:
https://gist.github.com/a-pompom/fd0ffa6a0206e86d0e84c955c26c2a12
a-pompom
May 17, 2020
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Transcript
5ZQF4DSJQUΛ͡ΊΑ͏ ˏBQPNQPN
࣍ 5ZQF4DSJQUͷϝϦοτ 5ZQF4DSJQUͰ)FMMP8PSME ࠓޙΞϧΰϦζϜΛ͍͖͍ͬͯͨʜ
5ZQF4DSJQUΛͳͥ͏ͷ͔ 5ZQF4DSJQU͕ແ͍ͱ͖
5ZQF4DSJQU͕ແ͍ͱ͖ JT.PVTFEPXOΛԿ λΠϓϛεʜ SFDUBOHMFESBX4UBDLʹ BQQFOEͯ͠ຊʹେৎʁ
5ZQF4DSJQU͕ແ͍ͱʜʁ ɾΤϥʔ࣮ߦ͢Δ·ͰΘ͔Βͳ͍ ɾೖྗิ͕ޮ͔ͳ͍͔ΒهԱΛཔΓʹ ϓϩύςΟΛ୳͢ ɾܕγεςϜ͕ؤு͍ͬͯͨ෦Λ ਓ͕ؒؤுΒͳ͍ͱ͍͚ͳ͍ Τϥʔࠈ
5ZQF4DSJQUͷ͋Δੜ׆ ˠؔʹ੍ΛՃ
ॻ͘ͱ͖ͷخ͠͞ ɾೖྗิͰϓϩάϥϜ͕ॻ͖͍͢ ɾλΠϓϛεʹ͙͢ؾ͚ͮΔ
ݺͼग़͢ͱ͖ͷخ͠͞ ɾ'JFME5ZQFܕ͔͠ड͚͚ͳ͍ ෆਖ਼ͳݺͼग़͠ํΛ͢ΔͱΤϥʔʹͯ͘͠ΕΔ ԿΛҾʹ͖͔͢Ұྎવ
5ZQF4DSJQUͷϝϦοτ ɾܕʹΑΔೖྗิͰίʔσΟϯάΛεϜʔζʹ ɾૣظͷΤϥʔͷൃݟ
5ZQF4DSJQUͷϝϦοτ ɾܕʹΑΔೖྗิͰίʔσΟϯάΛεϜʔζʹ ɾૣظͷΤϥʔͷൃݟ ɾίϯύΠϧΤϥʔ ඃˠখ ࣌ؒϩεˠখ ɾςετͰΤϥʔ ඃˠத ࣌ؒϩεˠத ɾຊ൪Τϥʔ
ඃˠۃେ ࣌ؒϩεˠۃେ
5ZQF4DSJQUͷϝϦοτ ɾܕʹΑΔೖྗิͰίʔσΟϯάΛεϜʔζʹ ɾૣظͷΤϥʔͷൃݟ ɾίϯύΠϧΤϥʔ ඃˠখ ࣌ؒϩεˠখ ɾςετͰΤϥʔ ඃˠத ࣌ؒϩεˠத ɾຊ൪Τϥʔ
ඃˠۃେ ࣌ؒϩεˠۃେ Τϥʔʹؾͮ͘ͷ͕ΕΔ ΄Ͳඃ૿େ
5ZQF4DSJQUͷϝϦοτ ❌ίϯύΠϧΤϥʔͰౖΒΕͨ ⭕ίϯύΠϥ͞Μ͕ॿ͚ͯ͘Εͨɻ͋Γ͕ͯ͑ 5ZQF4DSJQUΔ͖ͬΌͶ͐ʂ
͡ΊΑ͏5ZQF4DSJQU https://nodejs.org/ja/ ɾࣄલ४උ ɾOQNͷΠϯετʔϧ
/PEF1BDLBHF.BOBHFSͱʁ ɾઌਓͷ࡞ͨ͠ศརπʔϧΛ͍͍ͨ ࠓճΞϨͱιϨΛ͏͔Β·ͣ͜ΕΛ Πϯετʔϧͯͦ͠Ε͔Βɺͦ͏ͦ͏͋Εඞཁ ͚ͩͲɺ͋ɺͬͺΓͬͪ͜ඞཁͩΑͶ ͡Ό͋ɺશ෦Πϯετʔϧखॱॻʹै͓͍ͬͯͬͯͯͶ
/PEF1BDLBHF.BOBHFSͱʁ ɾOQNϦϙδτϦʹू ɾઃఆϑΝΠϧͰ؆୯ʹڞ༗ Πϯετʔϧ͕؆୯ ͭΑ͍ਓͷӥஐ͕݁ू QBDLBHFKTPO ޙड़ ͰڥΛෳͰ͖Δ
5ZQF4DSJQU࢝Ί͍ͨΜͰ͚͢Ͳʁ ɾQBDLBHFKTPO ɾXFCQBDLDPOpHKT ɾUTDPOpHKT ͳΜͷͨΊͷϑΝΠϧ͔ʁ ઃఆʹԿ͕ॻ͔Ε͍ͯΔ͔ʁ
1BDLBHFKTPO ɾύοέʔδใ ɾඞཁͳϞδϡʔϧใ Λهड़ͨ͠ͷ OPEF@NPEVMFTΛ࡞ ˠϞδϡʔϧຊମ
1BDLBHFKTPO ɾύοέʔδใ ɾඞཁͳϞδϡʔϧใ Λهड़ͨ͠ͷ ύοέʔδͷ֓ཁ ࠓ͋·Γؾʹ͠ͳͯ͘0, ύοέʔδͰ͏ίϚϯυͷ ΤΠϦΞε ˠͲ͏Ϗϧυɾςετ͖͔͢Λ ʮ໌ࣔʯ
1BDLBHFKTPO ɾύοέʔδใ ɾඞཁͳϞδϡʔϧใ Λهड़ͨ͠ͷ EFW%FQFOEFODJFTˠ։ൃ࣌ͷΈඞཁ ςετɾίϯύΠϧɾϏϧυ EFQFOEFODJFTˠ࣮ߦ࣌ʹඞཁ 3FBDU7VFͳͲ TBWFEFW
Φϓγϣϯ TBWF Φϓγϣϯ
͜͜·Ͱͷ༻ޠཧ ɾ/PEF1BDLBHF.BOBHFS ɾϞδϡʔϧ ɾύοέʔδ ɾίϯύΠϧ ɾCBCFM ɾϏϧυ ෳͷϞδϡʔϧΛΈ߹ΘͤΔͨΊͷศརπʔϧ ϓϩάϥϜΛͭ͘Δ্ͰศརͳػೳΛ·ͱΊ͔ͨͨ·Γ ϞδϡʔϧΛར༻ͯ͠࡞͢ΔϓϩάϥϜΛ֨ೲ͢Δ͔ͨ·Γ
ࠓճɺ5ZQF4DSJQUˠ+BWB4DSJQUͷมΛද͢ ϞμϯͳػೳΛ*&ͳͲͰ͏ͨΊͷϓϩάϥϜɻ͜͜Ͱͷมɺ τϥϯεύΠϧͱݺͿ ෳͷϑΝΠϧΛϑΝΠϧʹ·ͱΊΔɻXFCQBDLͷొ
XFCQBDLͱʁ ɾόϯυϧπʔϧ ˞όϯυϧʜҰͭʹ·ͱΊΔ͜ͱ ґଘؔΛߟྀͯ͠ TDSJQUλάΛੜ ˠCBTF%SBXJOHͷલʹ ESBXJOHΛॻ͘ͷ·ͣ͘ͳ͍ʁ ˠͱ͍͏͔ͦͦTDSJQUKTΛ ࠷ॳʹॻ͘ͱ͔͋Γ͑ͳ͘ͳ͍ʁ
XFCQBDLͱʁ ɾόϯυϧπʔϧ ˞όϯυϧʜҰͭʹ·ͱΊΔ͜ͱ
XFCQBDLDPOpHKT ɾXFCQBDLͷͨΊͷઃఆ ɾͲ͏όϯυϧ͢Δ͔ ɾجຊઃఆ ͜ͷϑΝΠϧΛىʹ ͜͜ʹϑΝΠϧΛஔ͍ͯͶ
XFCQBDLDPOpHKT ɾXFCQBDLͷͨΊͷઃఆ ɾͲ͏όϯυϧ͢Δ͔ ɾόϯυϧ͢Δͱ͖ʹ͍ͭͰʹ5ZQF4DSJQUͷίϯύΠϧͯ͠Ͷ
UTDPOpHKT ɾ5ZQF4DSJQUͷ ίϯύΠϧΦϓγϣϯ
UTDPOpHKT ɾ5ZQF4DSJQUͷ ίϯύΠϧΦϓγϣϯ ࣮ߦڥͰ+4͕ಈ͘Α͏ʹ ॻ͘ʂ ͍͍ࢿྉ͕͋ͬͨΒڭ͑ͯ ͍ͩ͘͞☺
)FMMP8PSME ઃఆϑΝΠϧͷஔ OQNJOTUBMMͷ࣮ߦ
)FMMP8PSME ϓϩάϥϜͷ࡞
)FMMP8PSME Ϗϧυͷ࣮ߦ OQNSVOCVJME
)FMMP8PSME ʘʘaa٩ Т وʗʗ
·ͱΊ ɾڥߏஙઌਓͷݞʹ͔ͬΔ ɾ׳Ε͖ͯͨΒઃఆͱ͖߹ͬͯΈΔ ɾͨͷ͍͠5ZQF4DSJQU͕͡·Δ ΞϧΰϦζϜΛɺ͡ΊΑ͏ https://gist.github.com/a-pompom/ fd0ffa6a0206e86d0e84c955c26c2a12