angular - 如何对数组元素进行排序？

Question

我试图在一个角度应用程序中对一个字符串数组进行排序，例如包含：

names = ["Eve","Jhon","Maria","Jadon"]我想对它们进行排序order : ["Maria", "Eve", "Jadon", "Jhon"] 我试过了

names.sort(); 

但这会将它按升序排列，但对我来说，我想选择我想要的顺序！好像我有一张桌子，我想将它的标题排序items=["id","name","email","fullname","tel"]到["name","id","email","tel","fullname"].

你有什么主意吗？

标签： angulartypescript

Answer 1

这是一个示例，您如何创建自定义排序函数以按预定义的有序数组进行排序

const THIS_ORDER = ["Maria", "Eve", "Jadon", "Jhon"] 

const data = ["Eve","Jhon","Maria","Jadon"];

const sorter = (a, b) => THIS_ORDER.indexOf(a) - THIS_ORDER.indexOf(b)

const result = data.sort(sorter)

console.log(result)