JavaScript-sort使用方法

默认排序方法

默认排序是根据 UniCode 码的顺序排序

var arr = ['afk','hello','body','script'];
arr.sort();
//['afk','body','hello','script']

升序排列

function sortNum(a,b) {rerturn a - b;}
var arr = [12,222,666,888,20,8];
arr.sort(sortNum);
//[8,12,20,222,666,888]

降序排列

function sortNum(a,b) {return b - a;}
var arr = [12,222,666,888,20,8];
arr.sort(sortNum);
//[888,666,222,20,12,8]

按照数组对象的某个属性值排序

var arr = {{name:leemo, age:21},
    {name:chuchu, age:22},
    {name:qiyue, age:1}
}
// 根据 age 排序
function compare(age){return function(a,b){return a[age] - b[age];
    }
}
arr.sort(compare('age'));