基于字符串对象的数组排序

基于字符串对象的数组排序

本文介绍了基于字符串对象的数组排序的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

假设我们有一个像

数组

  VAR一个= [
    {名称:'汤姆',姓:TestAsIvanov},
    {名称:'凯特',姓:诺娃},
    {名称:'约翰',姓:Alivanov},
    {名称:'伊万',姓:伊万诺夫}
]

我需要排序这个数组通过基于提供的字符串,例如姓字段:


  1. IVA模板阵列应排序如下:

VAR纽瓦= [
    {名称:'伊万',姓:伊万诺夫},
    {名称:'凯特',姓:诺娃},
    {名称:'约翰',姓:Alivanov},
    {名称:'汤姆',姓:TestAsIvanov},
]


  • 'A'模板阵列应按照如下顺序排列

  • VAR纽瓦= [
        {名称:'约翰',姓:Alivanov},
        {名称:'伊万',姓:伊万诺夫},
        {名称:'凯特',姓:诺娃},
        {名称:'汤姆',姓:TestAsIvanov},
    ]

    因此​​,阵列应该由提供的字符串的模式有序。这怎么可能实现呢?


    解决方案

    我做了一个简单的排序脚本的。我不知道这是否是最好的方法,因为我不得不用两个排序()方法,一是按字母顺序排序(的拍摄)和另一模拟 LIKE'字符串%'(比较SQL),让您的病情

      VAR的queryString =IVA;一个= a.sort(功能(A,B){
        变种S1 = a.surname.toUpperCase()的indexOf(queryString.toUpperCase())。
        变种S2 = b.surname.toUpperCase()的indexOf(queryString.toUpperCase())。    回报(S1 -1个和放大器;&安培; S1> S2);
    });

    至少它与你提供的这两个例子中的工作,但我不知道这是否是你所需要的。

    Suppose we have an array like

    var a = [
        { name: 'Tom', surname: 'TestAsIvanov' },
        { name: 'Kate', surname: 'Ivanova' },
        { name: 'John', surname: 'Alivanov' },
        { name: 'Ivan', surname: 'Ivanov' }
    ]
    

    I need to sort this array by surname field based on a provided string, e.g.:

    1. for 'iva' the pattern array should be sorted as follows
    var newA = [
        { name: 'Ivan', surname: 'Ivanov' },
        { name: 'Kate', surname: 'Ivanova' },
        { name: 'John', surname: 'Alivanov' },
        { name: 'Tom', surname: 'TestAsIvanov' },
    ]
    
    1. for 'a' the pattern array should be sorted as follows
    var newA = [
        { name: 'John', surname: 'Alivanov' },
        { name: 'Ivan', surname: 'Ivanov' },
        { name: 'Kate', surname: 'Ivanova' },
        { name: 'Tom', surname: 'TestAsIvanov' },
    ]
    

    So arrays should be ordered by string pattern provided. How is it possible to implement this?

    解决方案

    I've made a simple sort script for that. I don't know if it is the best way because I had to use two sort() methods, one to sort alphabetically(taken from here) and another to simulate a LIKE 'string%'(comparing to SQL) to get your condition:

    var queryString = "iva";
    
    a = a.sort(function(a, b) {
        var s1 = a.surname.toUpperCase().indexOf(queryString.toUpperCase());
        var s2 = b.surname.toUpperCase().indexOf(queryString.toUpperCase());
    
        return (s1 > -1 && s1 > s2);
    });
    

    At least it worked with both examples you provided, but I'm not sure if it is all you need.

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    08-20 22:58