如何按属性值长度对数组进行排序？

Question

在JavaScript的我有以下阵列对象：

var defaultSanitizer = [ 
    {"word": "large", "replaceWith":"L"}, 
    {"word": "os", "replaceWith":"One Size"}, 
    {"word": "xlarge", "replaceWith":"XL"}, 
    {"word": "o/s", "replaceWith":"One Size"}, 
    {"word": "medium", "replaceWith":"M"} 
    ... 
]; 

（实际上这阵列大得多）

我想使一个函数，所以我可以订购通过属性的长度的阵列价值例如对象的属性“单词”。

事情是这样的：

function sortArrByPropLengthAscending(arr, property) { 

    var sortedArr = []; 

    //some code 

    return sortedArr; 

} 

如果我要运行函数sortArrByPropLengthAscending（defaultSanitizer， “字”），它应该返回我的有序排列，看起来像这样：

sortedArr = [   
    {"word": "os", "replaceWith":"One Size"}, 
    {"word": "o/s", "replaceWith":"One Size"}, 
    {"word": "large", "replaceWith":"L"}, 
    {"word": "xlarge", "replaceWith":"XL"},   
    {"word": "medium", "replaceWith":"M"} 
    ... 
] 

如何你会这样做吗？

Answer 1

function sortMultiDimensional(a,b) 
{ 
    return ((a.word.length < b.word.length) ? -1 : ((a.word.length > b.word.length) ? 1 : 0)); 
} 

var defaultSanitizer = [ 
    {"word": "large", "replaceWith":"L"}, 
    {"word": "os", "replaceWith":"One Size"}, 
    {"word": "xlarge", "replaceWith":"XL"}, 
    {"word": "o/s", "replaceWith":"One Size"}, 
    {"word": "medium", "replaceWith":"M"} 
]; 

defaultSanitizer.sort(sortMultiDimensional); 
console.log(defaultSanitizer); 

Answer 2

您可以通过财产propName上升长度到位数组排序：

function sortArray(array, propName) { 
    array.sort(function(a, b) { 
     return a[propName].length - b[propName].length; 
    }); 
} 

见Array.sort功能的描述。