1  
  2  ========================
  3  Expression: true()
  4  Object is a Boolean : true
  5  
  6  ========================
  7  Expression: false()
  8  Object is a Boolean : false
  9  
 10  ========================
 11  Expression: number("1.5")
 12  Object is a number : 1.5
 13  
 14  ========================
 15  Expression: number('abc')
 16  Object is a number : NaN
 17  
 18  ========================
 19  Expression: -number('abc')
 20  Object is a number : NaN
 21  
 22  ========================
 23  Expression: floor(0.1)
 24  Object is a number : 0
 25  
 26  ========================
 27  Expression: floor(-0.1)
 28  Object is a number : -1
 29  
 30  ========================
 31  Expression: floor(-0)
 32  Object is a number : 0
 33  
 34  ========================
 35  Expression: floor(0)
 36  Object is a number : 0
 37  
 38  ========================
 39  Expression: floor(5.2)
 40  Object is a number : 5
 41  
 42  ========================
 43  Expression: floor(-5.2)
 44  Object is a number : -6
 45  
 46  ========================
 47  Expression: ceiling(0.1)
 48  Object is a number : 1
 49  
 50  ========================
 51  Expression: ceiling(-0.1)
 52  Object is a number : 0
 53  
 54  ========================
 55  Expression: ceiling(-0)
 56  Object is a number : 0
 57  
 58  ========================
 59  Expression: ceiling(0)
 60  Object is a number : 0
 61  
 62  ========================
 63  Expression: ceiling(5.2)
 64  Object is a number : 6
 65  
 66  ========================
 67  Expression: ceiling(-5.2)
 68  Object is a number : -5
 69  
 70  ========================
 71  Expression: round(0.1)
 72  Object is a number : 0
 73  
 74  ========================
 75  Expression: round(5.2)
 76  Object is a number : 5
 77  
 78  ========================
 79  Expression: round(5.5)
 80  Object is a number : 6
 81  
 82  ========================
 83  Expression: round(5.6)
 84  Object is a number : 6
 85  
 86  ========================
 87  Expression: round(-0.1)
 88  Object is a number : 0
 89  
 90  ========================
 91  Expression: round(-5.2)
 92  Object is a number : -5
 93  
 94  ========================
 95  Expression: round(-5.5)
 96  Object is a number : -5
 97  
 98  ========================
 99  Expression: round(-5.6)
100  Object is a number : -6