JasmineJS afterEach()

var currentVal = 0; 
afterEach(function() { 
   currentVal = 5;  
});  
describe("Different Methods of Expect Block",function() { 
   it("first call ", function() { 
      expect(currentVal).toEqual(0);     
   });     
   
   it("second call ",  function() { 
      expect(currentVal).toEqual(5);     
   });
});