问题描述
我有一个对象列表,我希望根据字符串类型的字段 attr
进行排序.我尝试使用 -
I have a list of objects I wish to sort based on a field attr
of type string. I tried using -
list.sort(function (a, b) {
return a.attr - b.attr
})
但发现 -
似乎不适用于 JavaScript 中的字符串.如何根据类型为字符串的属性对对象列表进行排序?
but found that -
doesn't appear to work with strings in JavaScript. How can I sort a list of objects based on an attribute with type string?
推荐答案
使用 String.prototype.localeCompare
根据您的示例:
Use String.prototype.localeCompare
a per your example:
list.sort(function (a, b) {
return ('' + a.attr).localeCompare(b.attr);
})
我们强制 a.attr 为字符串以避免异常.localeCompare
已被支持 从 Internet Explorer 6 和 Firefox 1 开始.您可能还会看到使用了以下不考虑区域设置的代码:
We force a.attr to be a string to avoid exceptions. localeCompare
has been supported since Internet Explorer 6 and Firefox 1. You may also see the following code used that doesn't respect a locale:
if (item1.attr < item2.attr)
return -1;
if ( item1.attr > item2.attr)
return 1;
return 0;
这篇关于如何在 JavaScript 中对字符串进行排序的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!