Question

JavaScript对象数组如何按指定属性和排序方

Answer 1

function sortNumber(a,b)
{
return a.number - b.number;//按印数排名
}
function element(name,number){//name为书名,number是什么印数
this.name=name;
this.number=number;
this.toString=function(){//关键要重写toString,返回书名
return this.name;
}
}
var arr = new Array(3)
arr[0] = new element("x",2000)
arr[1] = new element("y",1000)
arr[2] = new element("z",3000)
document.write(arr.sort(sortNumber))

Answer 2

//按照name排序。
var arr =  [{id:1,name:'dbc'},{id:2,name:'cac'},{id:3,name:'cab'}];

var c = arr.sort(function(a,b){
    return a.name >b.name;
});

// [{ id: 3, name: 'cab' },{ id: 2, name: 'cac' },{ id: 1, name: 'dbc' } ]