迅雷前端笔试

第二题我是这样写的，本地通过了，赛码上却是0.。。。也不知道是哪里的问题。。心塞塞。。 function sortStudents(students) {         students.sort(function(obj1,obj2){             if(obj1['class']<obj2['class']){                 return -1;             }else if(obj1['class']>obj2['class']){                 return 1;             }else {                 return obj1['score']-obj2['score'];             }         })       return students;     }

function fn(students){   students.sort(function(a,b){     return a.class!==b.class?a.class -b.class:b.score - a.score   })   return JSON.stringify(students) }

function sortStudents (students) {   students.sort((a, b) => {     if (a.class - b.class != 0) {       return a.class - b.class     }     if (a.score - b.score != 0) {       return b.score - a.score     }   })   return JSON.stringify(students) }