========================
Expression: true()
Object is a Boolean : true

========================
Expression: false()
Object is a Boolean : false

========================
Expression: number("1.5")
Object is a number : 1.5

========================
Expression: number('abc')
Object is a number : NaN

========================
Expression: -number('abc')
Object is a number : NaN

========================
Expression: number('-')
Object is a number : NaN

========================
Expression: floor(0.1)
Object is a number : 0

========================
Expression: floor(-0.1)
Object is a number : -1

========================
Expression: floor(-0)
Object is a number : 0

========================
Expression: floor(0)
Object is a number : 0

========================
Expression: floor(5.2)
Object is a number : 5

========================
Expression: floor(-5.2)
Object is a number : -6

========================
Expression: floor(100000000000000000000)
Object is a number : 1e+20

========================
Expression: floor(-100000000000000000000)
Object is a number : -1e+20

========================
Expression: floor(0 div 0)
Object is a number : NaN

========================
Expression: floor(1 div 0)
Object is a number : Infinity

========================
Expression: floor(-1 div 0)
Object is a number : -Infinity

========================
Expression: ceiling(0.1)
Object is a number : 1

========================
Expression: ceiling(-0.1)
Object is a number : 0

========================
Expression: ceiling(-0)
Object is a number : 0

========================
Expression: ceiling(0)
Object is a number : 0

========================
Expression: ceiling(5.2)
Object is a number : 6

========================
Expression: ceiling(-5.2)
Object is a number : -5

========================
Expression: ceiling(100000000000000000000)
Object is a number : 1e+20

========================
Expression: ceiling(-100000000000000000000)
Object is a number : -1e+20

========================
Expression: ceiling(0 div 0)
Object is a number : NaN

========================
Expression: ceiling(1 div 0)
Object is a number : Infinity

========================
Expression: ceiling(-1 div 0)
Object is a number : -Infinity

========================
Expression: round(0.1)
Object is a number : 0

========================
Expression: round(5.2)
Object is a number : 5

========================
Expression: round(5.5)
Object is a number : 6

========================
Expression: round(5.6)
Object is a number : 6

========================
Expression: round(-0.1)
Object is a number : 0

========================
Expression: round(-5.2)
Object is a number : -5

========================
Expression: round(-5.5)
Object is a number : -5

========================
Expression: round(-5.6)
Object is a number : -6

========================
Expression: round(0.5)
Object is a number : 1

========================
Expression: round(-0.5)
Object is a number : 0

========================
Expression: round(100000000000000000000)
Object is a number : 1e+20

========================
Expression: round(-100000000000000000000)
Object is a number : -1e+20

========================
Expression: round(0 div 0)
Object is a number : NaN

========================
Expression: round(1 div 0)
Object is a number : Infinity

========================
Expression: round(-1 div 0)
Object is a number : -Infinity