Array reconstruction method javaScript

1.push (p1, p2 ...); stack, add the last element in the array surface

　　Parameters: the element to be pushed onto the stack
　　Return Value: length of the array;

2.pop (); the last element of the stack pop

　　Parameters: none;

　　Return Value: the pull element

result:

shift (); the team, the first element of the team

　　Parameters: none

　　Returns: the team element

operation result:

sort (comparator); queuing

　　a comparator for the comparison function, a function can accept two values a, b; b is located when a return to the previous
　　comparator (a, b);

      　　With minimal code, completion can be freely selected in accordance with the object id / name / age / grade to ascending or descending order

　　　　

　　　　Sort Results:

　　　　

Reconstruction Sort ();

　　Use bubble sort