Angular 4 如果名称以数字结尾，OrderBy 管道不排序

Question

我想用管道对以数字结尾的名字进行排序。

I have used custom pipe and getting results as expected

$苹果水果-符号
1个苹果水果-数
苹果水果 - 按字母顺序排列

But it is not sorting if name ends with number.

现在结果：

苹果水果3
苹果水果01
苹果水果5
苹果水果02

JSON

[
{"name": "Apple fruit3"},
{"name": "$Apple fruit"},
{"name": "Apple fruit"},
{"name": "Apple fruit01"},
{"name": "Apple fruit5"},
{"name": "Apple fruit02"},
]

HTML

<div *ngFor='let list of names | appOrderBy : "name" '>
<div>{{list.name}}</div>
</div>

OrderBy 自定义管道

import { Pipe, PipeTransform } from '@angular/core';
@Pipe({
     name: 'appOrderBy'
})
export class OrderBy implements PipeTransform {
transform(array: Array<string>, args: string): Array<string>{
array.sort((a: any, b: any) => {
  if (a[args] < b[args]) {
    return -1;
  } else if (a[args] > b[args]) {
    return 1;
  } else {
    return 0;
  }
});
return array;
}
}

Answer 1

使用 Intl.Collator 作为自然数排序的比较函数。

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator

const array = [
  {name: "Apple fruit3"},
  {name: "$Apple fruit"},
  {name: "Apple fruit"},
  {name: "Apple fruit01"},
  {name: "Apple fruit5"},
  {name: "Apple fruit02"},
];

args= 'name';

var collator = new Intl.Collator(undefined, {numeric: true, sensitivity: 'base'});

array.sort((a, b) => collator.compare(a[args], b[args]));

console.log(array);

我根据此答案搜索自然数排序 Google 搜索返回此 post。

Javascript : natural sort of alphanumerical strings

Angular 4 如果名称以数字结尾，OrderBy 管道不排序

Angular 4 OrderBy Pipe not sorting if name ends with number

sorting

typescript

angular-pipe

angular