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Pipeline Operator

Pipeline Operator

2019年10月9日、tc39_studyにて発表した資料です。

OKUNOKENTARO

October 09, 2019
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  1. 1JQFMJOF0QFSBUPS
    0DU [email protected]
    !PLVOPLFOUBSP

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  2. ֓ཁ
    w IUUQTHJUIVCDPNUDQSPQPTBMQJQFMJOFPQFSBUPS
    w IUUQTEFWFMPQFSNP[JMMBPSHKBEPDT8FC+BWB4DSJQU
    [email protected]
    w 4UBHF
    ʢ೥݄೔Α
    Γʣ

    w ೥݄Ҏ߱5$ͷٞࣄ࿥ʹ͸ग़ͯͣ͜

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  3. ԿΛ͢Δ΋ͷ͔
    w c(b(a(x)))ͷTVHBS
    w x |> a |> b |> cͱॻ͚ΔΑ
    ͏ʹͳΔ
    w |>͕1JQFMJOF0QFSBUPS

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  4. ͳͥٻΊΒΕΔͷ͔
    w ࣜͷ࿦ཧతͳߏ଄ԽΛॿ͚Δ
    w ࠨ͔Βӈ΁ಡΜͰ͍͚Δ
    w ෳࡶͳҾ਺ωε
    τ͸ಡΈʹ͘
    ͘
    σʔλϑϩʔΛղऍ͠ʹ͍͘
    w ݱࡏ͜ͷΑ
    ͏ʹಡΊΔίʔ
    υΛॻ͘ʹ͸ɺ
    υο
    τͰͷϝ
    ιο
    υνΣʔϯ͕ඞཁ
    w ͳͥؔ਺Ͱ͜Ε͕Ͱ͖ͳ͍ͷ͔
    ʁ

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  5. ্͔ΒԼʹಡΊΔɺ
    Πϯσϯ
    τ΋ἧ͏

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  6. ݴޠతલྫ
    w ' 0$BNM &MJYJS &MN +VMJB )BDLͳͲͰ࠾༻
    w 5$1SPQPTBMͰ͸ಛʹ'ͷલྫ΍ߏจΛϕʔεʹ࢓༷ఏҊ͞Ε͍ͯΔ

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  7. Ҿ਺͕ͭҎ্ͷ৔߹͸
    ʁ
    w ໭Γ஋Λɺ
    ࣍ͷؔ਺ͷҾ਺ͷͲͷҐஔʹ౉͢΂͖͔Ͱٞ࿦͞Ε͍ͯΔ
    w ΋ͱ͸'ϕʔε͕ͩͬͨ

    +BWB4DSJQUBXBJUͱͷ੔߹ੑʹ೉͋ΓͰΞϨϯδ͕͞Ε͍ͯΔ
    w ΞϨϯδͷ೿ൊ͕େ͖
    ͭ͋͘Γ

    1SPQPTBM 1SPQPTBMͱݺ͹ΕΔ

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  8. 1SPQPTBM
    'ߏจΛϕʔεʹBXBJU΋࢖͑ΔΑ
    ͏
    ΞϨϯδ

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  9. 1SPQPTBM
    ˌه߸ͰҾ਺ͷ౉ΔҐஔΛࢦఆ͢Δ͜ͱΛඞਢͱͨ͠)BDLߏจελΠϧ

    View Slide

  10. 1BSUJBM"QQMJDBUJPO
    1BSUJBM"QQMJDBUJPO 4UBHF
    ͱͷ૊Έ߹Θͤ΋ݕ౼

    ʢ͜Ε͸1JQFMJOF0QFSBUPS1SPQPTBMʣ

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  11. ࠓ͙͢࢖͍͍ͨ৔߹
    w npm install -D @babel/plugin-proposal-pipeline-
    operator
    w 'JSFGPYҎ߱ͳΒ͹--enable-pipeline-operatorϑϥά෇͖Ͱ

    ར༻Մೳ

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  12. ॴײ
    w 1SPQPTBM ʹ෼அͯ͠େมͦ͏
    w ೥Ն࣌఺Ͱɺ
    ߏจͷ޷Έ͚ͩͰͳ͘ॲཧܥͷޮ཰ʹ౿ΈࠐΜͩ

    ٞ࿦Λͯ͠ΔͷͰ΍Δؾ͸͋Γͦ͏
    w 3Y+4ʹ׳ΕͯΔͱཉ͘͠ͳΔؾ࣋ͪ͸෼͔Δ

    View Slide