如何按字母順序對記錄具有名稱的記錄數組進行排序：字符串字段？

Question

let items = [| {name: "b"}, {name: "c"}, {name: "a"}|];

// 預期 output

[| {name: "a"}, {name: "b"}, {name: "c"}|];

正在考慮使用Belt.SortArray.stableSortBy但需要一個int 。

Answer 1

String.compare恰好返回一個 int，所以你可以使用它：

let items = [| {name: "b"}, {name: "c"}, {name: "a"}|];

let sorted = Belt.SortArray.stableSortBy(items, (a, b) => String.compare(a.name, b.name));