Javascript 如何创建一个对数值数组进行排序并能够动态交换数组的函数?
这是我的密码Javascript 如何创建一个对数值数组进行排序并能够动态交换数组的函数?,javascript,arrays,Javascript,Arrays,这是我的密码 var content = [ 409, 879, 483, 465, 907, 154, 838, 847 ]//the array var result = content.sort( function( a, b ){ return a - b } )//This works alert( result )//works. But I want to be able to easily swap out arrays lik
var content = [ 409, 879, 483, 465, 907, 154, 838, 847 ]//the array
var result = content.sort( function( a, b ){ return a - b } )//This works
alert( result )//works. But I want to be able to easily swap out arrays like below
function order( ary )//this function returns undefined, why?
{
ary.sort( function( a, b ){ return a - b } )//order numbers from least to greatest;
}
var result = order( content );
alert( result )//returns undefined
不确定为什么我的order函数返回未定义的,但在代码工作的函数之外?我想允许order函数在调用时接受任何数组。谢谢,是的,我是新手。您应该返回结果
function order( ary )
{
return ary.sort( function( a, b ){ return a - b } )//order numbers from least to greatest;
}
演示:您应该返回结果
function order( ary )
{
return ary.sort( function( a, b ){ return a - b } )//order numbers from least to greatest;
}
演示:该函数不返回任何内容。@aduch
Array.prototype.sort
既返回排序后的数组,也对原始数组进行排序。该函数不返回任何内容。@aduchArray.prototype.sort
既返回排序后的数组,也对原始数组进行排序。