Talk session @ golang.tokyo #19
Head FirstGolangimage package@__timakin__golang.tokyo#19
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SEIJI TAKAHASHI
ΞδΣϯμ *NBHFύοέʔδͷհ ࣮ྫͰֶͿ*NBHFύοέʔδը૾ͷ߹ɾՃը૾ͱจࣈͷ߹
QBDLBHFl*NBHFzw %ը૾Λѻ͏ͨΊͷύοέʔδw +1( 1/( (*'ʹରԠw Ͱ͖Δ͜ͱw ৭ใऔಘw 1PJOU 3FDUBOHMFͷૢ࡞w ݁߹ॲཧʢESBXʣw ϑΥʔϚοτͷσίʔυ
ྫʣͷ࢛֯ܗΛඳը
ϞβΠΫγϟʔϓௐ໌Δ͞ௐͳͲɺେମΓ͍ͨ͜ͱͰ͖Δ͕ίʔυྔ͕ଟ͗͢ΔͷͰׂѪ
ͱ͍͏͔
ؙ࢛֯ͷඳըͱ͔Ṗͷ৭ௐͱ͔
ͦΜͳ͜ͱͨͯ͘͜͜͠ʹ͖ͯ·͔͢ʁ
࣮ફͯ͠Έ·͠ΐ͏ʂ
ը૾ͷ߹ɾՃ
ͱ͜ΖͰօ͞Μ
!EFFFFU͞ΜɻࠃͰϚΠΫϩαʔϏεͱ͍͑͜ͷํɻ
Ͱ͕͢ɺ
ˌEFFFFU෩
खʹ࣋ͬͨΦϒδΣΫτʢʣΛதԝʹਾ͑ͳ͕ΒࣸਅΛࡱΔࡱӨٕ๏ʢʁʣ
!?
ͦΜͳʹखʹ͓͠ΌΕͳΛ࣋ͭػձͳ͍
୭Ͱख๏Λ࠶ݱͰ͖Δͱศར
ɿW
Γ͍ͨ͜ͱw Ͱ͍͍ײ͡ͷงғؾΛग़͍ͨ͠w ͦΕΛखʹ࣋ͬͨঢ়ଶͰதԝʹఴ͍͑ͨw ʹϑΥʔΧε͍ͯ͠Δ෩ʹ͍ͨ͠
ඞཁͳͷw खɺɺഎܠ
ΦϦδφϧ
ඞཁͳͱ͜Ζ
దͳഎܠΛ୳͢
ݟ͚ͭΔ
࣮w ྆ը૾ͷಡΈࠐΈw എܠʹదͳ΅͔͠ΛೖΕΔw खͷը૾Λਃ͠༁ఔʹαΠζௐ͢Δw खट͕ࠨԼʹདྷΔΑ͏ʹͬ͢ͱ߹w ϑΝΠϧग़ྗ
HJUIVCDPNEJTJOUFHSBUJPOJNBHJOHw JNBHFύοέʔδͷϥούʔw ΅͔͠໌ௐ͕ͷ͍͢͝؆୯ʹͰ͖Δ
ਃ͠༁ఔͷαΠζௐ
ͬ͢ͱࠨԼʹ߹
ग़ྗʜ
ը૾ͷ߹ɾՃw HJUIVCDPNEJTJOUFHSBUJPOJNBHJOHΛ͏ͱ͍ͩͿָʹ΅͔͠ͳͲΛೖΕΒΕΔw ߹ͷࡍج४͕ࠨ্Ͱ͋Δ͜ͱʹҙw ਖ਼༧֎ͷͦΕͬΆ͞ʹͳͬͨ
ˠਅ໘ͳ
αʔϏεӡ༻தɺϚʔέࢪࡦͱͯ͠0(1ը૾Λ࡞͢Δ͜ͱ͕͋ΔͷͰʁ
ը૾ͱจࣈͷ߹
Γ͍ͨ͜ͱw 0(1എܠը૾ʹจࣈΛ߹͢Δw ҙͷจࣈྻΛҙͷϑΥϯτͰɺ దͳҐஔʹදࣔ͢Δ
ૉࡐ
࣮w ҙͷϑΥϯτΛಡΈࠐΉw ͦͷϑΥϯτͰςΩετΛҙͷҐஔʹඳըw എܠͱॏͶ߹Θͤͯॻ͖ग़͠
HJUIVCDPNHPMBOHGSFFUZQFUSVFUZQFw ҙͷϑΥϯτͰςΩετΛҙͷҐஔʹग़͢ʹɺ௨ৗͷը૾ՃͰෆՄɻw GSFFUZQFύοέʔδΛ͏ɻ
ϑΥϯτͷಡΈࠐΈ
എܠΛॻ͖ग़͓ͯ͘͠
GPOU%SBXFSΛͬͨςΩετඳը
ը૾ͱจࣈͷ߹w ϑΥϯτҐஔௐΛॊೈʹ͍ͨ͠߹ɺ GSFFUZQFύοέʔδͱGPOU%SBXMFSͷ߹ΘٕͤͰ͍͚Δw ը૾ͷͲͷҐஔʹදࣔ͢Δ͔ɺจࣈͷંΓฦ͠ Ͳ͏͢Δ͔దٓௐͷඞཁ͋Γ
·ͱΊ JNBHFͰ৭ɾେ͖͞ͳͲ͕؆୯ʹऔಘͰ͖Δ ϥούʔΛ͑Ճ؆୯ ߹ͷ߹࠲ඪɾॻ͖ग़͠ॲཧͷ࣮͕ར༻έʔεʹԠͯ͡มΘͬͯ͘ΔͷͰҙͷඞཁ͋Γ
͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ