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Write Code Every Day
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Takuto Wada
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April 25, 2016
Technology
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Write Code Every Day
Takuto Wada
PRO
April 25, 2016
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Transcript
Write Code Every Day Takuto Wada a.k.a @t_wada Apr 25,
2016
5BLVUP8BEB JEUXBEB !U@XBEB HJUIVCUXBEB
None
assert(typeof item.id === 'strong') | | | | | |
| false | | "foo" | Item{id:"foo",name:"bar"} "string" --- [string] 'strong' +++ [string] typeof item.id @@ -1,6 +1,6 @@ str -o +i ng I am the author of power-assert-js power-assert
ΑΖ͓͘͠ئ͍͠·͢
w K2VFSZ࡞ऀ+PIO3FTJHिʹࣗͷϓϩ μΫτ։ൃΛؤுΖ͏ͱ͕ͨ͠ɺࣦഊɻ w ฏͱಉ͡അྗͰॻ͚ͳ͍ w શͯͷि͕ۭ͍͍ͯΔΘ͚Ͱͳ͍ w Ұिؒ ͋Δ͍ೋिؒ
͍ɻίʔυ ΛΕͯ͠·͏ w ͦ͜Ͱ+PIO3FTJH͕ߦͬͨ͜ͱʜʜ ͋ͷ+PIO3FTJHͰ͏·͍͔͘ͳ͍͜ͱ
IUUQFKPIOPSHCMPHXSJUFDPEFFWFSZEBZ
ຖίʔυΛॻ͘͜ͱɻϒϩάɺυΩϡϝϯ τɺͦͷଞίʔυΛॻ͍ͨΒͬͯΑ͍ɻ ҙຯͷ͋ΔίʔυΛॻ͘͜ͱɻΠϯσϯτ ϑΥʔϚοτͷमਖ਼ɺՄೳͳΒϦϑΝΫ λϦϯάίʔυॻ͖ʹΧϯτ͠ͳ͍ɻ ਂ࣌લʹऴΘΒͤΔ͜ͱɻ ॻ͍ͨίʔυΛHJUIVCͰશͯ044ʹ͢Δ ͜ͱɻ ࢛ͭͷϧʔϧ IUUQFKPIOPSHCMPHXSJUFDPEFFWFSZEBZ
ݱࡏͷ!KFSFTJHͷHJUIVCQSPpMF IUUQTHJUIVCDPNKFSFTJH
w ඞཁ࠷খݶͷίʔυͷूதҰʙ࣌ؒఔͰҙ ຯͷ͋ΔίʔυΛॻ͘͜ͱ͕ڧ͍ΒΕΔ ٳʹͬͱ ͔͚ΒΕΔ w ϓϩάϥϛϯάͷश׳ԽHJUIVCʹΛੜ͢ͷ͕తͰ ͳ͍ɻࣗͰࣗࣗͷͨΊʹੜ׆श׳Λม͑Δͷ͕େ ࣄ
w ෆ҆ͱͷઓ͍ҎલʮेʹʯਐΜͰ͍Δ͔ɺʮे ʹʯ͍ͯ͠Δ͔ɺෆ͕҆͋ͬͨɻຖίʔυΛॻ͍ͯ ΈͯɺਐΜͰ͍Δͱ͍͏࣮ײɺ࣮ࡍͷਐḿͱಉ͘͡Β͍ ॏཁͩͱ͍͏ؾ͖ͮΛಘͨ +PIO3FTJHʹىͬͨ͜มԽ
w िͷա͔ͨ͝͠Ҏલ։ൃͷશͯΛिʹṌ͚ࣦͯ ഊ͍͕ͯͨ͠ɺ͍·िͦΕ΄ͲॏཁͰͳ͘ͳΓɺ ϦΞϧϥΠϑΛॆ࣮Ͱ͖ΔΑ͏ʹͳͬͨ w όοΫάϥϯυॲཧࢄาதɺγϟϫʔதɺৗʹίʔ υͷ͜ͱΛόοΫάϥϯυͰߟ͑ΔΑ͏ʹͳΓɺྑ ͍ΞΠσΞ͕ු͔ͿΑ͏ʹͳͬͨ w ίϯςΫετεΠονҎલिʹҰճͷ։ൃͩͬͨͷ
ͰίϯςΫετεΠονͷίετ͕͕͋ͬͨɺ͍· ຖͳͷͰͦΕ͕ͳ͍ +PIO3FTJHʹىͬͨ͜มԽ
w ϫʔΫϥΠϑόϥϯεࣄੜ׆ࣗͷϓϩδΣΫτ ͷόϥϯεͷऔΓํ͕͔ͬͨͷ͕࠷େͷऩ֭ͩͬͨɻ ຖΔͱ͍͏͜ͱɺόϥϯεΛऔΔͱ͍͏͜ͱ w ·ΘΓ͔ΒͷཧղʮຖίʔυΛॻ͘ʯͱ͍͏श׳Λ ެݴͨ͜͠ͱͰɺύʔτφʔ͔ΒͷཧղಘΒΕΔΑ ͏ʹͳͬͨ w ͲΕ͚ͩίʔυΛॻ͍͔ͨ͜ͷश׳Λଓ͚Δͱॻ͘
ίʔυΞτϓοτࣗͰ֮͑ΒΕͳ͍͘Β͍ ͷྔʹͳΓɺॆ࣮ײΛಘΒΕΔ +PIO3FTJHʹىͬͨ͜มԽ
ཁ͢ΔʹےτϨͷΑ͏ͳͷ͔ IUUQISOBCJDPN
lτϨʔχϯά͕ܧଓՄೳͰ͋ΔΑ͏ʹҙࣝ͠ͳ͕Β ࣄΛ͍ͯ͘͠ͱɺӡಈ৯ࣄɺ͋ͱੜ׆श׳ͱ͍ ͏ͷͷॏཁੑʹؾͮ͘͜ͱ͕Ͱ͖Δͱࢥ͍·͢z lͪΌΜͱతΛ࣋ͭ͜ͱɻهΛ৳͢Α͏ʹΒ ͳ͍ͱޮՌ͕ͳ͍Α͏ʹࢥ͏ΜͰ͢ɻهΛ৳ͨ͠ ͍ͱࢥ͑Δ͔Ͳ͏͔ͬͯɺʮ͖ͷόϩϝʔλʔʯͷ ͭͰ͢z IUUQISOBCJDPN ѲྗԦڼ͍ͬͯΔ
ࢲνϟϨϯδதͰ͢ ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠