AbortControllerでPromiseをキャンセルする

Pegass85 竹内佑介
2025/12/13(土) JavaScript祭 2025@Pleasanter Lounge

Transcript

1. "CPSU$POUSPMMFSͰ1SPNJTFΛΩϟϯηϧ͢Δ
   1FHBTT
   ஛಺༎հ
    ౔
   +BWB4DSJQUࡇ
   !1MFBTBOUFS
   -PVOHF ڊ ڊ େ ϩ Ϙ େ ϩ Ϙ ಡ ಡ Έ ߹ ͍ ό τ ϧ Έ ߹ ͍ ό τ ϧ ˜
   1FHBTT ˜
   1FHBTT
2. ࣗݾ঺հ w ஛಺༎հ
   w +4ͰΠϯσΟʔήʔϜ։ൃ
   w ػಈ۞ָ෦(ϒϨΠόʔόʔετ
3. ήʔϜ͸1SPNJTFΛ࢖͏ͱָ
   ΠϕϯτɺΞχϝΛBTZOD
   BXJUͰखଓతʹهड़Ͱָ͖ͯ
   ˢΛϔϧύʔؔ਺ʹ·ͱΊΒΕΔͷͰ؅ཧ΋ָ ήʔϜ͸ࠩ͠ࠐΈॲཧ͕ଟ͍
   ϦτϥΠɺεςʔδऴྃ
   ωοτରઓͩͱ৭ʑͱڧ੍ऴྃͤ͞Δ͜ͱ΋ଟ͍ ͳͷͰ1SPNJTFఀࢭ͕ඞཁ
   1SPNJTF͕ͦͷ··ͩͱฐ֐͕ଟ͍
   Իָ͕ͳΓͬͺͳ͠ɺը໘දࣔ͸ͳ͍ͷʹཪͰແବʹಈ͖ଓ͚Δ ͸͡Ίʹ
4. "CPSU$POUSPMMFSͰ
   1SPNJTFΛΩϟϯηϧ͢Δ
5. ʲྫʳ1SPNJTFΛ࢖ͬͨΠϕϯτهड़
6. 1SPNJTFΩϟϯηϧͷσϞ
7. "CPSU$POUSPMMFSͷ࢖༻ྫ
8. "CPSU$POUSPMMFS૬ؔਤ "CPSU$POUSPMMFS 1SPNJTFੜ੒ؔ਺ GFUDI 1SPNJTF "CPSU4JHOBM 
   "CPSU 
   3FKFDU ΩϟϯηϧΛ௨஌ 1SPNJTF͕3FKFDUͰऴྃ
9. "CPSU$POUSPMMFSͷ஫ҙ఺ "CPSUͨ͠Β3FKFDU͢Δ͔͸࣮૷ґଘ
   ͜ͷڍಈ͸σϑΝΫτελϯμʔυͰ͸͋Δ 1SPNJTFͳΒແ৚݅Ͱ࢖͑Δ༁Ͱ͸ͳ͍
   1SPNJTFʹTJHOBM͸౉ͤͳ͍ɺ1SPNJTFΛੜ੒͢Δؔ਺ʹTJHOBMΛ౉͢ "CPSU$POUSPMMFS͸தࢭΛ௨஌͢Δ͚ͩ
   BCPSUͨ࣌͠ͷॲཧ͸ؔ਺಺Ͱ࡞ΓࠐΉඞཁ͕͋Δ
10. "CPSU$POUSPMMFSରԠ1SPNJTFͷྫ "CPSU͕௨஌͞ΕͨΒ
    3FKFDU
11. ·ͱΊ "CPSU$POUSPMMFS͸1SPNJTFΩϟϯηϧͷ
    σϑΝΫτελϯμʔυ
    Ωϟϯηϧॲཧ͸1SPNJTFੜ੒ͨؔ͠਺Ͱ࡞ΓࠐΉ͜ͱ ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ ڊ ڊ େ ϩ Ϙ େ ϩ Ϙ ಡ ಡ Έ ߹ ͍ ό τ ϧ Έ ߹ ͍ ό τ ϧ ˜
    1FHBTT ˜
    1FHBTT