TypeScript - road to static (typing) ojisan -

Transcript

1. d
   SPBE
   UP
   TUBUJD
   UZQJOH
   PKJTBO
   d !EPKJOFLP
   
   (.0
   1FQBCP
   *OD
   
   5FDI.5( 5ZQF4DSJQU
2. 5ZQF4DSJQUͰ
   ੩తܕ෇͚͓͡͞ΜϥΠϑ
3. ໨࣍ w5ZQF4DSJQU
   ͱ͸ʁ
   w5ZQF4DSJQU
   ͷίί͕ศར
   w5ZQF4DSJQU
   ͷͭΒΈ
   ͱରԠࡦ
   wͪΐͬͱͣͭ࢝ΊΔ
   5ZQF4DSJQU
4. 5ZQF4DSJQU
   ͱ͸ʁ
5. 5ZQF4DSJQU w.JDSPTPGUൃͷ੩తܕ෇ͷBMU+4
   w+BWB4DSJQU
   ͷεʔύʔηοτͰ͋Γɺ ͢΂ͯͷ
   +BWB4DSJQU
   ͸༗ޮͳ
   5ZQF4DSJQU
   ͱݴ͑Δ
   wίϯύΠϥͷػೳʹґΔίʔυิ׬ͳ ͲͷΤσΟλࢧԉͰָʹ։ൃ͕Ͱ͖Δ
   wIUUQTXXXUZQFTDSJQUMBOHPSH
6. ͳΜͰ
   5ZQF4DSJQU
   
7. ϚωʔδυΫϥ΢υͰͷ࠾༻ཧ༝
    w ϚωʔδυΫϥ΢υ͸ϑϩϯταΠυ͔ΒαʔόʔαΠυ·ͰҰ؏ͯ͠
 +BWB4DSJQU
   Ͱ࣮૷͞Ε͍ͯΔ
   w ։ൃ͕ਐΉʹ࿈Εͯ૿͍͑ͯ͘υΩϡϝϯτԽ͞Ε͍ͯͳ͍
   +BWB4DSJQU
   w +4%PD
   +BWB4DSJQU
   ͷυΩϡϝϯτπʔϧ
   ͸ະಋೖ
   w 5ZQF4DSJQUͷಋೖ࣌͸ςετ͸͜Ε͔Βॻ͍͍ͯ͘ͱ͍͏ϑΣʔζ
   w ͦ͜Ͱ
   5ZQF4DSJQU
   ʹΑΔɺ੩తܕ෇͚Λར༻ͨ͠ߏจղੳ΍ɺίʔυิ׬ͳͲͷ ΤσΟλࢧԉػೳΛ׆༻͢Δ
   w ʮίʔυΛಡΈղ͔ͳͯ͘΋ɺࠓ೔͔Β͸͡ΊΒΕΔ։ൃ؀ڥʯ͕ΰʔϧʂ
8. ϚωʔδυΫϥ΢υͰͷ࠾༻ཧ༝
    w5ZQF4DSJQU
   ͸
   (PPHMF
   ࣾ಺Ͱར༻Մೳͳݴޠʹ࠾༻͞Εͨ
   w IUUQXXXQVCMJDLFZKQCMPHHPPHMFUZQFTDSJQUOHDPOG@IUNM
   w $$ ɺ+BWBɺ+BWB4DSJQUɺ1ZUIPOɺ(P
   ʹଓ͍ͯͷ࠾༻
   w ೥͕͔ΓͰݕ౼ɾݕূΛͯ͠ͷ݁Ռͱͷ͜ͱ
   wνʔϜ։ൃʹԙ͍ͯɺܕʹΑΔ੍໿͕ίʔυͷ඼࣭ͷ୲อʹɺ
 ͋Δఔ౓༗ޮʹಇ͘ݟࠐΈ͕͋ͬͨ
   wίϯύΠϧޙͷίʔυ΋ਓ͕ಡΊΔΑ͏ͳܗʹͳ͍ͬͯΔ
9. ίʔυΛಡΈղ͔ͳͯ͘΋
   ࠓ೔͔Β࢝ΊΒΕΔ։ൃ؀ڥ
10. ܕγεςϜ੩తղੳ ੩తղੳ ඇ࣮ߦ࣌ʹ͓͚Δܕ৘ใΛ͍࣋ͬͯΔͷͰ
    ͋Δఔ౓͸ςετΛॻ͔ͣͱ΋ίʔυΛ࣮ߦͤͣ
    ίϯύΠϧ࣌ʹϛεʹؾ͚ͮΔʂ ʜ͕ɺܕʹΑͬͯอূ͞ΕΔͷͰى͜Γʹ͍͘ʂ
    ؒҧͬͯ΋ίϯύΠϥ͕ࢦఠͯ͘͠ΕΔʂະવʹ๷͕ΕΔʂ w ͏͔ͬΓ਺஋Λظ଴͢Δม਺ʹจࣈྻΛೖΕͨʜ
    w ؔ਺͕ظ଴͍ͯ͠ͳ͍Ҿ਺Λ౉ͨ͠ʜ
    w ܕ͕֬ఆ͠ͳ͍ঢ়ଶͰࢀরͪ͠Ό࣮ͬͯߦ࣌ʹΤϥʔʜ
11. ίʔυิ׬ ίʔυิ׬ ίϯύΠϥʹΤσΟλࢧԉػೳ͕͍͓ͭͯΓ
    ରԠͨ͠ΤσΟλ΍֦ுػೳΛಋೖ͢Δͱ
    ܕ৘ใΛݩʹೖྗީิΛิ׬ͯ͘͠ΕΔʂ ʜ͕ɺυΩϡϝϯτΛݟͣͱ΋෼͔Δʂ
    ࢖༻ํ๏·Ͱग़ͯ͘ΔʂλΠϓ਺΋ݮָͬͯͰ͖Δʂ w DMBTT
    9:;
    ͬͯԿͷϝιου͕͚͋ͬͨͬʜ
    w ͜ͷϝιουͬͯԿܕ͕ฦͬͯ͘ΔΜ͚ͩͬʜ
    w ͦ΋ͦ΋Կͯͨ͠Μ͚ͩͬʜ
12. ੩తܕ෇͚ɾಈతܕ෇͚ w੩తղੳ΍ίʔυิ׬͸ɺ*%&΍ɺ੩తܕ෇͖ݴޠͷίϯύΠϥ͔Β ͢ΔͱׂΓͱҰൠతͳػೳ
    ʹͳͬͨ
    w͔͠͠ͳ͕ΒզΒ͕
    +BWB4DSJQU
    ͸ಈతܕ෇͖ݴޠͳͷͰ࣮ߦ͢Δ· Ͱܕͷঢ়ଶ͕ෆఆɺ΋͘͠͸ਪ࿦͢Δ͜ͱ͕೉͍͠
    w5ZQF4DSJQU
    ͸ಈతܕ෇͖ݴޠͷ
    +BWB4DSJQU
    ʹܕͷ֙Λணͤͯ੩త ܕ෇͚ͱͨ͠ݴޠ
13. 5ZQF4DSJQU
    ͷΠϝʔδ 5ZQF4DSJQU
    ͸
    +BWB4DSJQU
    ͷ֙
    ੩తͳܕΛ༩͑Δͱڞʹɺ
    ศརͳ෢ث΋༩͑ͯ͘ΕΔɻ
    ੩తղੳɺίʔυิ׬
    FUDʜ
    
    5ZQF4DSJQU
    ͸֙ͳͷͰ͋͘·Ͱ
    ࣮ߦ͞ΕΔͷ͸
    +BWB4DSJQU
    +4ͷ৺Λ๨Εͯ͸ΠέφΠɻ
    ݹࣄهʹ΋ͦ͏ॻ͔Ε͍ͯΔ
14. Generics Interface Abstract Class Async/Await Enum Namespace Decorator Promise ΄͔ʹ΋+4ʹແ͍
    ศརͳػೳ͕ͨ͘͞Μʂ
15. ଟ͗ͯ͢આ໌͖͠Εͳ͍ͷͰࠓճ͸লུʜ
16. 5ZQF4DSJQU
    ·ͱΊ w5ZQF4DSJQU
    ͸
    +BWB4DSJQU
    Λ੩తܕ෇͚ͰهࡌͰ͖Δ
    BMU+4
    ͩΑ
    wΤσΟλࢧԉػೳ΋͋ͬͯͱͬͯ΋ศརʂ
    w੩తܕ෇͚ͳͷͰಈతܕ෇͖ݴޠʹ͋Γ͕ͪͳɺ
 ͜·͔ͳϛε΋େ఍͸ίϯύΠϥ͕ࣄલʹࢦఠͯ͘͠ΕΔΑ
    wଞʹ΋+BWB4DSJQU
    Λϕʔεʹศརͳػೳ͕୔ࢁ༻ҙ͞ΕͯΔΑ
17. 5ZQF4DSJQU
    ͷͭΒΈʜ
    ͱରԠࡦ
18. ྫ
    ܕఆ͕ٛͳ͍
19. 5ZQF4DSJQU
    ʹԙ͚ΔܕγεςϜ w5ZQF4DSJQU
    ͸੩తܕ෇͚Ͱͳ͍
    +BWB4DSJQU
    ʹܕΛ࣋ͪࠐΉ࢓૊Έ
    w༧Ί࢖͍͍ͨ֎෦ϥΠϒϥϦͷܕ͸ఆٛ͞Ε͍ͯΔඞཁ͕͋Δ
    wK2VFSZ
    3FBDU
    "OHVMBS
    7VFKT
    /PEFͷίΞϥΠϒϥϦ
    FUDʜ
    wϝδϟʔͳ΋ͷ͸
    %FpOJFUMZ5ZQFE
    Ͱܕఆ͕ٛఏڙ͞Ε͍ͯΔ
    wϥΠϒϥϦࣗ਎͕ܕఆٛ৘ใΛ͍࣋ͬͯΔ৔߹΋
    w5ZQF4DSJQU
    ͸
    +4%PD
    ͔Β΋ܕ৘ใΛऔΕΔ
20. OQN
    ͰܕఆٛϑΝΠϧΛ
    औಘͯ͠࢖͑Δʂ 
    Λ௒͑Δ
    ϥΠϒϥϦͷܕఆٛΛऩ࿥
    ༗ࢤ͕όϯόϯߋ৽ͯ͘͠ΕΔ
21. Ͱ͸ɺܕఆ͕ٛ୭ʹ΋ఏڙ͞Εͯͳ͍ϥΠϒϥϦΛ࢖͏γʔϯͰ͸ʜʁ
22. ΋͠ܕఆ͕ٛͳ͔ͬͨΒʁ
     wʲύλʔϯʳܕఆٛΛॻ͘ʂ
    wܕఆٛ͸ಠࣗͰॻ͘͜ͱ΋Ͱ͖ΔͷͰͬ͘͞Γॻ͍ͯ͠·͏ύλʔϯ
    wOQNͰެ։͞ΕͯΔ΋ͷͷܕఆٛΛॻ͍ͨΒ
    %FpOJFUMZ5ZQFE
    ʹ
 ϓϧϦΫΤετΛૹΔͱྑ͍
    ΋ͪΖΜૹΒͳͯ͘΋0,
23. ܕఆٛͷແ͍ϥΠϒϥϦͷྫ w จࣈྻ΍਺஋Λ
    CPPMFBO
    ʹม׵͢Δ
    ZO
    ͱ͍͏ύοέʔδ
    w ؀ڥม਺ TUSJOH
    ͔Β
    CPPMFBO
    ʹม׵͍ͨ͠ʂ
    w ͔͠͠ͳ͕Β͜Εʹ͸ܕఆ͕ٛఏڙ͞Ε͍ͯͳ͍
    w %FpOJFUMZ5ZQFE
    ʹ΋ܕఆ͕ٛͳ͍
    w +4%PD
    ΋͍ͭͯͳ͍
    ΞϨ͹࢖͑ͨʜ
    w ܕఆ͕ٛͳ͍ͷͰ
    5ZQF4DSJQU
    ্Ͱ
 ม׵݁ՌΛ
    CPPMFBO
    ͱͯ͠ड͚औΕͳ͍ʜ
    w શ෦
    BOZ
    ܕʹͳΔʜ
    ͔ͳ$
24. ܕఆٛΛॻ͜͏ʂ
25. ܕఆٛΛॻ͘Αʂ w ͜ΕͰ
    5ZQF4DSJQU
    ͰܕΛ࣋ͬͨঢ়ଶͰ
    ZO
    Λ࢖͏͜ͱ͕Ͱ͖Δ
    w ܕఆٛ͸ύοέʔδͷ͢΂ͯͷ࣮૷Λ໢ཏ͢Δඞཁ͸ͳ͍ lZOz
    ͱ͍͏໊લͷϞδϡʔϧ͕͋Δ͜ͱΛ
    ఆٛ͢Δ
    Ϟδϡʔϧ
    㲈
    OQN
    QBDLBHF ZO
    ͱ͍͏ؔ਺͕͋ͬͯɺҾ਺ΛͭऔΓɺ
    ໭Γ஋͸
    CPPMFBO
    Ͱฦͬͯ͘Δ͜ͱΛ
    ఆٛ͢Δɻ޷ΈͰ+4%PD
    ΋෇͚ΒΕΔɻ ZO
    ͕
    FYQPSU
    ͞Ε͍ͯΔ͜ͱΛఆٛ͢Δ
    JNQPSU
    ͨ࣌͜͠ͷؔ਺Λ࢖͑Δͱ͍͏ఆٛ
26. ܕఆٛΛॻ͍ͨΑʂ ఆٛͨ͠Ҿ਺ͱܕͷ৘ใ͕ิ׬͞ΕΔ Ҿ਺ͷܕͱ߹Θͳ͍৔߹͸
    Τϥʔͱͯ͠ݕ஌͞ΕΔΑ͏ʹͳΔ
27. ΋͠ܕఆ͕ٛͳ͔ͬͨΒʁ
     wʲύλʔϯʳBOZܕͰಀ͛੾Δʂ
    wBOZܕͰ͍͔ͳΔܕ΋ڐ༰ͯͦ͠ͷ෦෼͚ͩ໨ΛᛉΔύλʔϯ
    w͕࣌ؒͳ͍৔߹ɺܕఆٛΛॻ͘͜ͱʹਫ਼௨ͯ͠ͳ͍৔߹͸༗ޮ
28. BOZ
    ܕͰಀ͛੾Δύλʔϯ ܕ໊ ྫ 4USJOH จࣈྻܕ l)FMMP
    XPSMEz /VNCFS ਺஋ܕ  #PPMFBO ೋ஋ܕ USVF
    GBMTF "SSBZ5 ഑ྻܕ <
    lBz
    lCz
    lDz
    >
    
    "SSBZTUSJOH /VMM OVMMܕ OVMM "OZ BOZܕ 
    ೚ҙͷܕΛڐ༰͢Δܕ w 5ZQF4DSJQU
    ʹ͸ԼهͷΑ͏ͳܕ͕͋Δ
    Ұ෦ൈਮ
29. BOZ
    ܕͰಀ͛੾Δύλʔϯ ܕ໊ ྫ 4USJOH จࣈྻܕ l)FMMP
    XPSMEz /VNCFS ਺஋ܕ  #PPMFBO ೋ஋ܕ USVF
    GBMTF "SSBZ5 ഑ྻܕ <
    lBz
    lCz
    lDz
    >
    
    "SSBZTUSJOH /VMM OVMMܕ OVMM "OZ BOZܕ 
    ೚ҙͷܕΛڐ༰͢Δܕ w 5ZQF4DSJQU
    ʹ͸ԼهͷΑ͏ͳܕ͕͋Δ
    Ұ෦ൈਮ
30. BOZ
    ܕͰಀ͛੾Δύλʔϯ w BOZ
    ܕ͸จࣈ௨ΓͳΜͰ΋͋Γͷܕ
    จࣈྻͰ΋ɺ਺஋Ͱ΋ɺVOEFpOFEͰ΋
    w $$
    ͷ
    WPJE
    ΍
    (P
    ͷ
    JOUFSGBDF\^
    ʹ͍ۙ֓೦
    w ܕఆٛͷແ͍ϥΠϒϥϦ͸·Δ͝ͱ
    BOZܕ
    ͱ͢Ε͹ίϯύΠϧΛ௨͢͜ͱ͕Ͱ͖Δ
    w BOZܕ
    ʹͳͬͨ΋ͷ͸ܕͷ੍໿Λ֎ΕΔ
    w ܕͷ੍໿Λ֎ΕΔͷͰίϯύΠϥʹࢧԉͯ͠΋Β͑ͳ͘ͳΔ
    w ۭ͍ͨ࣌ؒͰ࢖͏ൣғ͚ͩͰ΋ܕఆٛΛॻ͘ͷ͕͓͢͢Ίʂ
31. ͪΐͬͱͣͭ͸͡ΊΔ
    5ZQF4DSJQU
32. Ͳ͏΍ͬͯಋೖ͢Δ͔ʁ w5ZQF4DSJQU
    ͕ྑ͍ͷ͸Θ͔͚ͬͨͲͲ͏΍ͬͯಋೖ͢Δͷʁ
    w ͢Ͱʹ
    K2VFSZ
    Ͱॻ͍ͨίʔυ͕ͨͬ΀Γ͋ΔΜ͚ͩͲʜ
    w શ෦
    5ZQF4DSJQU
    ʹ͠ͳ͍ͱͩΊͳΜͰ͠ΐʁ
    w#BCFM
    ࢖͑ͳ͍ͷʁ
    w 1SPNJTF
    ͱ͔
    BTZODBXBJU
    w ௒ڧྗͳ
    #BCFM
    ϓϥάΠϯ ܕͱ͔Ͳ͏Ͱ΋͍͍͔Β
    ࣮૷ͤͯ͞ʜ
33. طଘͷίʔυʹগͮͭ͠ೖΕ͍ͯ͘ w5ZQF4DSJQU
    ͸
    +BWB4DSJQU
    ͷʮεʔύʔηοτʯ
    w࿦ཧΤϥʔΛؚ·ͳ͍ݶΓɺ֦ுࢠΛม͑Δ͚ͩͰίϯύΠϧͰ͖Δ
    w%FpOJFUMZ5ZQFE
    Ͱެ։͞Ε͍ͯΔܕఆٛ࢖ͬͯɺ
 ঃʑʹॻ͍͍ͯ͘ͷ͕खܰͰखݎ͍
    w ٧·ͬͨΒʮͱΓ͋͑ͣ
    BOZ
    ܕΛ࢖ͬͯΈΔʯ
    ͱ͍͏΍Γํ΋ΞϦ
    w5ZQF4DSJQU
    ͔Β
    +BWB4DSJQU
    Λ
    JNQPSU
    ͯ͠࢖͏͜ͱ΋Ͱ͖Δ
    w5ZQF4DSJQU
    ΛͱΓ͋͑ͣೖΕͯΈΔ͚ͩͳΒ͙͢ʹͰ͖Δʂ
34. +4͔Β54΁ͷҠߦྫ w ΄ͱΜͲॻ͖׵͑ͣʹҠߦ͢Δ͜ͱ͕Ͱ͖ͨ
    Ұ෦ྫ֎͋Γ
    w Ҡߦͷ్தͰ
    EPDVNFOUHFU&MFNFOU#Z*E
    ͷ݁Ռ͕
    OVMM
    ʹͳΓ͏Δͱ͍͏
 ߟྀ͕ൈ͚͍ͯΔ͜ͱΛݕ஌ͨ͠ͷͰमਖ਼ͨ͠
 ໭Γ஋͕
    )5.-&MFNFOU
    PS
    OVMM
    ͷͨΊͦͷ··ͩͱίϯύΠϧΤϥʔʹͳΔ
35. #BCFM
    ͸Ͳ͏͢Δʁ
     w5ZQF4DSJQU
    Ͱ͸࣮ߦ؀ڥΛࢦఆͯ͠ίϯύΠϧ͢Δ͜ͱ͕Ͱ͖Δ
    w &4
    
    &4ɺ&4/FYU
    
    &4
    ͳͲະདྷͷػೳΛݱࡏʹ࣋ͪࠐΊΔ
    w 1SPNJTFɺ"TZOD"XBJU
    ͳͲͷओཁͳػೳΛτϥϯεύΠϧ͢ΔͨΊʹ
 #BCFM
    Λಋೖ͍ͯ͠ΔͳΒ
    5ZQF4DSJQU
    ͸
    #BCFM
    ͷ্Ґޓ׵ͱͳΓಘΔ
    w "TZOD"XBJU
    ͷ
    &4
    ΁ͷίϯύΠϧ͸
    5ZQF4DSJQU
    
    ͰରԠࡁΈ
    w ͦͷଞͷ
    ࣍ੈ୅ͷ
    &$."4DSJQU
    ͷҰ෦ઌߦ࣮૷ͷαϙʔτ΋͞Ε͍ͯΔ ˞
    #BCFM
    ʜ
    +4ͷະདྷͷػೳΛݱࡏ͋ΔػೳͰ࠶ݱ͢ΔͨΊͷπʔϧ
 ˞
    &$."4DSJQU
    ʜ
    +BWB4DSJQU
    ͷඪ४࢓༷ɻίίͰ͸ʮ͍ΘΏΔ
    +4
    ͷ͜ͱʯ͘Β͍ͷೝࣝͰ0,
36. #BCFM
    ͸Ͳ͏͢Δʁ
     w#BCFM1PMZpMM
    ͷΑ͏ͳ࣮ߦ؀ڥͷࠩ෼ΛຒΊΔػೳ͸ଘࡏ͠ͳ͍
    w ͔͠͠ͳ͕Β
    #BCFM
    ͱͷซ༻ࣗମ͸Մೳ
    w ซ༻͢Δͱ
    5ZQF4DSJQU
    ͷίϯύΠϧͱ
    #BCFM
    ͷτϥϯεύΠϧͰ
 ഒ͕͔͔࣌ؒΔͷͰ͓͢͢Ί͸͠ͳ͍
    w Ͳ͏ͯ͠΋ඞཁͳΒ
    #BCFM1PMZpMM
    Λผ్ಡΈࠐΜͰซ༻͢Δͷ͕ྑͦ͞͏
    wݴޠػೳΛେ͖͘ม͑ΔΑ͏ͳ
    #BCFM
    ϓϥάΠϯͷΑ͏ͳػೳ͸ແ͍
    w &$."4DSJQU
    ඪ४ͷ"1*͕ॆ࣮͖͍ͯͯ͠ΔͷͰ੾Γସ͑Λݕ౼͢ΔͳͲ
37. ͪΐͬͱͣͭ͸͡ΊΔ
    54
    ·ͱΊ w5ZQF4DSJQU
    ΁ͷҠߦ͸ͦΜͳʹ೉͍͜͠ͱͰ͸ͳ͍Α
    w +BWB4DSJQU
    ͷεʔύʔηοτͳͷͰߏจ͸্Ґޓ׵ʹͳΔ
    w ͨ͘͞ΜͷܕఆٛϑΝΠϧ͕ఏڙ͞Ε͍ͯΔ
    w Ҡߦͯ͠Δ్தͰؾ͖͕ͮ͋Δ͔΋ʁ
    w#BCFM
    Λߴ౓ʹ࢖༻͍ͯ͠Δͱ͖͸஫ҙͯ͠Ͷ
    w Ұ෦ͷ৽͍͠ػೳΛ࢖͍͍͚ͨͩͳΒ
    #BCFM
    ͸ෆཁ͔΋ʁ
38. ͱ͍͏Θ͚Ͱʜ
39. ܕγεςϜͰखݎ͍։ൃ
    ͸͡ΊͯΈ·ͤΜ͔ʁ
40. ܕ͸͍͍ͧ
41. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠