sortBy()

asc

code:ts

export const sortBy = <T>(predicate: (a: T) => any) => (a: T, b: T) =>

predicate(a) > predicate(b) ? 1 : predicate(b) > predicate(a) ? -1 : 0;

desc版

code:ts

export const sortDescBy = <T>(predicate: (a: T) => any) => (a: T, b: T) =>

predicate(a) > predicate(b) ? -1 : predicate(b) > predicate(a) ? 1 : 0;

使用例

code:ts

arr.sort(sortBy(a=>a.userId))