javascript - 如何按属性值长度对包含对象的数组进行排序？

Question

在javascript中，我有以下带有对象的数组：

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"}
    ...
];

（实际上这个数组要大得多）

我想创建一个函数，以便可以按属性值的长度对数组进行排序，例如对象的属性“单词”。

像这样的东西：

function sortArrByPropLengthAscending(arr, property) {

    var sortedArr = [];

    //some code

    return sortedArr;

}

如果我要运行函数 sortArrByPropLengthAscending(defaultSanitizer, "word") 它应该返回一个如下所示的排序数组：

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

你会怎么做？

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

您可以按属性的升序长度对数组进行排序propName：

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

见Array.sort函数说明。