排序的記錄數組升序

Question

可能重複：
How to sort an array of objects?

鑑於學生下面的記錄的陣列 - 你將如何按升序排列，根據年齡的Javascript使用它們排序？

students = [{ 
name: "timothy", 
age: "9"}, 
{ 
name: "claire", 
age: "12"}, 
{ 
name: "michael", 
age: "20"}] 

Answer 1

按年齡進行升序排列，使用Array.sort使用自定義比較函數：

students.sort(function (a, b) 
{ 
    return a.age - b.age; 
}); 

// students will be 
[{name: "timothy", age: "9"}, 
{name: "claire", age: "12"}, 
{name: "michael", age: "20"}] 

Answer 2

通過年齡：

students = students.sort(function(a, b) { 
    return parseFloat(a.age) - parseFloat(b.age); 
}); 

Answer 3

student.sort(function(a,b){ 

if (a.name > b.name) 
    return -1; 
return 1; 

}); 

Answer 4

讀了這個例子：

var marks = new Array(10,12,11,20,2); 
     for(var i=0;i<marks .length;i++) //Hold the first element 
    { 
     for(var j=i+1;j<marks.length;j++) //Hold the next element from the first element 
     { 
      if(Number(marks[i]) > Number(marks[j])) //comparing first and next element 
      { 
       tempValue = marks[j]; 
       marks[j] = marks[i]; 
       marks[i] = tempValue; 
      } 
     } 
    } 
     document.write(marks); 

Answer 5

students.sort(function(a,b){ 
     if (+a.age > +b.age) return 1; 
     return -1; 
}); 
// Now the object is ordered by age (min to max) 

如果你想知道，+ a.age相同號（a.age）