========================
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: 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: 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: 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