1

可能重复：
如何对 javascript 对象数组进行排序？

我正在尝试将一些旧的 ActionScript 2.0 代码转换为 JavaScript。一切正常，但我无法按分数对数组进行数字排序。

在我使用的原始 ActionScript 代码中：

// Sort the capitals array so that the capitals with the lowest score will be at the top
capitalsList.sortOn("score", Array.NUMERIC);

这工作正常，但在 JavaScript 中不起作用。我将其更改为：

capitalsList.sort("score", Array.NUMERIC);

但是阿拉巴马州仍然被输出（康涅狄格州应该被输出，因为它的分数是-1）。我错过了什么？

我在 JS Bin 上的脚本：http: //jsbin.com/ibitez/1/edit

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<script>
window.onload = function() {

    function capitalsConstructor(capitalName, stateName, score) {
        this.capitalName = capitalName;
        this.stateName = stateName;
        this.score = score;
    }

    // Create state capitals array
    var capitalsList = new Array();

    // All 50 capitals are loaded into the array with a score of 0
    // Sample limited to 10 capitals
    capitalsList[0] = new capitalsConstructor("Montgomery", "Alabama", 0);
    capitalsList[1] = new capitalsConstructor("Juneau", "Alaska", 0);
    capitalsList[2] = new capitalsConstructor("Phoenix", "Arizona", 0);
    capitalsList[3] = new capitalsConstructor("Little Rock", "Arkansas", 0);
    capitalsList[4] = new capitalsConstructor("Sacramento", "California", 0);
    capitalsList[5] = new capitalsConstructor("Denver", "Colorado", 0);
    capitalsList[6] = new capitalsConstructor("Hartford", "Connecticut", -1);
    capitalsList[7] = new capitalsConstructor("Dover", "Delaware", 0);
    capitalsList[8] = new capitalsConstructor("Tallahassee", "Florida", 0);
    capitalsList[9] = new capitalsConstructor("Atlanta", "Georgia", 0);

    capitalsList.sort("score", Array.NUMERIC);

    solution = capitalsList[0].stateName;

    document.getElementById("divSolution").innerText = solution;
}
</script>
</head>

<body>
<div id="divSolution"></div>
</body>
</html>
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1 回答 1

4

您必须为该方法提供回调sort：

capitalsList = capitalsList.sort(function (a, b) {
    return a.score - b.score;
});

这是小提琴：http: //jsfiddle.net/g2CQG/

于 2013-01-14T01:36:11.090 回答