20251104 型

Transcript

1. ܕ
2. f ilter
3. ߜΓࠐΈ🔺
4. ͲΜͳ৔߹͕Ͱ͖Δͷ͔
5. Ϧςϥϧ
8. ৚݅௥Ճ
10. μϝͩͬͨ
11. ΦϒδΣΫτͷϦςϥϧ
14. ཁૉͷϓϩύςΟ
16. ཁૉ͕ͳ͍Մೳੑ
18. Ͳ͏͢Δ͔
19. reduce
20. usersInfodayo: data.usersInfo .filter((user) => user.isChecked) .reduce< { id: string; name: string }[] >((acc, user) => [...acc, { id: user.id, name: user.name }], []),
21. f latmap
22. usersInfodayo: usersInfo.flatMap((user) => user.isChecked && user.name ? [{ id: user.id, name: user.name }] : [] ),
23. Ϣʔβʔܕఆٛ
24. usersInfodayo: usersInfo .filter( ( user ): user is { id: string; isChecked: true; name: string; } => user.isChecked && typeof user.name === "string" ) .map((user) => ({ id: user.id, name: user.name })),
25. ͜Ε͸Ұ൪ෆ҆ఆ
26. ࣗ෼Ͱఆٛ
27. asʹ͍ۙ΋ͷ