Hatena Engineer Seminar #18 https://hatena.connpass.com/event/235821/
2022/01/26 Hatena Engineer Seminar #18
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ࣗݾհid: lunasteraʢ͑Βʣ ͯͳϒοΫϚʔΫνʔϜScala͕͖
ԿΛ͍ͯ͠ΔͷϑϩϯτΤϯυɺͬͯ·͢Scala.jsͰͳ͍Ͱ͢
ScalaతͰೖࣾͨ͠ਓ͕ؒ Կʹͯ͠ʮͯͳϒοΫϚʔΫʯͷ ϑϩϯτΤϯυվળ׆ಈΛߦ͏Α͏ʹͳͬͨͷ͔
ͯͳϒοΫϚʔΫ
QSPYZΞʔΩςΫνϟ$PSF"1*#''NJDSPTFSWJDFTྨٛޠݕࡧʜʜ
ΠϯλʔϯͷՌ$PSF"1*NJDSPTFSWJDFTྨٛޠݕࡧʜʜ
ೖࣾ·Ͱ࣮͜ͷ࣌ͰϑϩϯτΤϯυʹۤखҙ͕ࣝ͋ͬͨΠϯλʔϯ ΞϧόΠτ ೖࣾ։ൃମݧྑ
ࣗԿ͕Ͱ͖Δ͔ରԠൣғΛ͛Δ׆ಈ4DBMBʁϑϩϯτʁΠϯϑϥʁσʔλج൫ʁ
ϑϩϯτΤϯυͷᬍ• ͋·ΓϞμϯͳײ͡Ͱͳ͍• όοΫΤϯυ͕ڧ͍ਓ͕ଟ͍όοΫΤϯυ ϑϩϯτΤϯυࣗͰʜʁ
ࣗൃతͳվળ׆ಈ• ௐࠪ / ݕূ -> վળҊ• ScrapboxʹվળΛྻڍ• ؒҧ͍ͬͯΔ͔ͱ͍͏ෆ҆• ৽ଔͱ͍͏६Λར༻ͯ͠ͱΓ͋͑ͣઓ
վળఏҊྫ• tsconfig ͷ target / module Λదͳʹ• ෆཁʹͳͬͨpolyfillΛফ͢• ඇਪύοέʔδͷҠߦ• lodashग़• ग़ͷͨΊͷରԠදͳͲ࡞• Ϗϧυ࣌ؒ / όϯυϧαΠζվળ• ͲͷఔͷޮՌ͕ظͰ͖Δͷ͔
WebΤϯδχΞձ• WebΤϯδχΞ͕ٞΛ࣋ͪدͬͯٞ• ϑϩϯτΤϯυվળҊΛ͍࣋ͬͯͬͨʹཱͯͨʂ
վળҊͷ࣮ߦ• ͋͘·ͰεϓϦϯτλεΫ༏ઌ• ࡉ͔͍ۭ͖࣌ؒʹগͣͭ͠• όϯυϧαΠζ 1/2ɺϏϧυ࣌ؒ 1/3• ੩తϑΝΠϧϏϧυͪͷ͕࣌ؒݮʂ
ϑϩϯτΤϯυձ• ϑϩϯτΤϯυใΛڞ༗͢Δձ• ׆ಈΛଓ͚ΔϞνϕʔγϣϯʹ99νʔϜ ϒΫϚνʔϜ 99νʔϜ
νʔϜͷϑϩϯτΤϯυվળେਉ• ͜Ε·ͰͷܦݧͰࣗ৴͕͍ͭͨ• ੵۃతʹϝϯς͢Δ͜ͱΛܾҙ• ޭମݧ͕ϑϩϯτΤϯυͷۤखҙࣝΛม͑ͨ
·ͱΊ• ઓ͢Δେ͞•❌ ৽ଔ͔ͩΒઓ͠ͳ͍•⭕ ৽ଔ͔ͩΒͦ͜ઓ͢Δ• Γ͍ͨ͜ͱΛ໌֬ʹ• ԿނΓ͍ͨͷ͔ / ԿނͦΕ͕ඞཁͳͷ͔