如何在JavaScript中对字符串排序

I have a list of objects I wish to sort based on a field attr of type string. I tried using -

我有一个对象列表，我希望根据类型为string的字段attr进行排序。我试着用,

list.sort(function (a, b) {
    return a.attr - b.attr
})

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?

但是发现-在JavaScript中似乎不能处理字符串。如何基于具有字符串类型的属性对对象列表进行排序?

8 个解决方案

#1

352

Use String.prototype.localeCompare a per your example:

使用String.prototype。localeCompare符合你的例子:

list.sort(function (a, b) {
    return ('' + a.attr).localeCompare(b.attr);
})

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:

我们迫使。attr为字符串，以避免异常。从Internet Explorer 6和Firefox 1开始就支持localeCompare。您可能还会看到下面使用的不尊重语言环境的代码:

if (item1.attr < item2.attr)
  return -1;
if ( item1.attr > item2.attr)
  return 1;
return 0;

8 个解决方案

#1

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