Javascript sort()不适用于Chrome中包含10个以上对象的数组 [英] Javascript sort() isn't working for arrays of more than 10 objects in Chrome
问题描述
在Javascript中使用sort()方法时，我无法正确地对包含10个以上对象的数组进行排序.这仅在Google Chrome浏览器中发生；可以在Firefox和IE上使用.
While using sort() method in Javascript, I'm not able to correctly sort an array of more than 10 objects. This happens only in Google Chrome; with Firefox and IE it works.
我有一个由11个对象组成的数组，具有两个属性，即数字和名称；我想按编号然后按名称订购这些对象，但是对于Chrome浏览器，它不起作用.
I have an array of 11 objects with two properties, number and name; I'd like to order these object per number and then per name, but with Chrome it doesn't work.
这是整个页面的代码:
<!DOCTYPE html>
<HTML>
<HEAD>
<SCRIPT>
var availableTags = [
{number: 0,name:"Consigli"},
{number: 0,name:"De sanctis"},
{number: 0,name:"Perin"},
{number: 1,name:"Bonucci"},
{number: 2,name:"Essien"},
{number: 2,name:"Florenzi"},
{number: 2,name:"Hernanes"},
{number: 2,name:"Martinho"},
{number: 2,name:"Montolivo"},
{number: 2,name:"Parolo"},
{number: 2,name:"Perez"}
];
function sortPlayers(a, b) {
var result = (parseInt(a.number) > parseInt(b.number));
if( (!result) && (parseInt(a.number) == parseInt(b.number)) ) {
result = a.name.toLowerCase().localeCompare(b.name.toLowerCase());
}
return result;
}
function updateFormation() {
availableTags.sort( sortPlayers );
var html = "";
for (var i = 0; i < availableTags.length; i++) {
html += availableTags[i].number + " " + availableTags[i].name + "\n";
}
alert(html);
}
</SCRIPT>
</HEAD>
<BODY>
<script type="text/javascript">
updateFormation();
</script>
</BODY>
在以下链接上: http://blog.rodneyrehm.de/archives/14 -Sorting-Were-Doing-It-Wrong.html 我读到如果数组包含10个或更少的元素，Chrome会使用InsertionSort对数组进行排序.":也许这可能会有所帮助...
At the following link: http://blog.rodneyrehm.de/archives/14-Sorting-Were-Doing-It-Wrong.html I read that "Chrome will sort arrays using InsertionSort if the array has 10 or less elements.": maybe this may help...
有人可以帮助我吗?
推荐答案
Array.prototype.sort方法要求sort helper方法返回三种不同类型的值.
Array.prototype.sort method expects the sort helper method to return three different types of values.
1. Negative number - If the first element is smaller
2. Positive number - If the second element is smaller
3. Zero - If both the elements are equal
因此，您的sortPlayers必须像这样进行一些调整
So, your sortPlayers has to be tweaked a little, like this
function sortPlayers(a, b) {
if (a.number === b.number) {
return a.name.toLowerCase().localeCompare(b.name.toLowerCase());
} else {
return a.number > b.number ? 1 : -1;
}
}
由于a.number和b.number实际上是整数，因此您可以像这样直接写
Since a.number and b.number are actually integers, you can straight away write like this
return a.number - b.number;
这篇关于Javascript sort()不适用于Chrome中包含10个以上对象的数组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IT屋！
