If we have this kind of array then we can easily access student using Array Index.
But wait, we also want to do something like
students["aaa"], that is, I want to access students using their unique Id too, much like object notation -
Ex students.aaa should also return proper student.
Again, I want to group them with their subjects too,
students.Math should return Array of all students who has "Math" subject
the normal approach is to create function which do parsing again and again over the Array and give proper result. but Here i have very sweet trick.
Here we go,
So, In the above trick , student.length is not affected, it will remain 3. So after running above code, we have 'students' Array (more precisely - Object Like Array ), like this.
Now, by this method,
students, students.aaa, students.Math will be same,
students === students.aaa
students.aaa === students.Math
More over, If you do change like this
students.name = "A-Modified";
then it will automatically reflected everywhere,
So it means,
students.aaa.name === "A-Modified";
Hope, now you can start using Object Like Array.