为什么javascript的排序功能不好用? [英] Why doesn't the sort function of javascript work well?

问题描述

这个简单的javascript

This simple javascript

var x = new Array();
x[0] = 2.73;
x[1] = 11.17;
x[2] = 3.12
x.sort();

for(var i in x)
    alert(x[i]);

产生结果:11.17, 2.73, 3.12 而不是 2.73, 3.12, 11.17.

produces the results: 11.17, 2.73, 3.12 instead of 2.73, 3.12, 11.17.

这是为什么，我该如何解决?

Why is that and how can I fix it?

提前致谢！

推荐答案

是按字母顺序排序的，试试传递自己的排序函数:

It's sorting alphabetically, try passing your own sorting function:

var x = new Array();
x[0] = 2.73;
x[1] = 11.17;
x[2] = 3.12;

numberSort = function (a,b) {
    return a - b;
};

x.sort(numberSort);

for(var i in x) {
    alert(x[i]);
}

这篇关于为什么javascript的排序功能不好用?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！