> a = 1
= 1
> a
= 1

> f1 = fraction(1, 2)
= (1 / 2)
> f1 + 1
= (3 / 2)

> Math.sin(1) 
= 0.84147098

> a = 10
= 10
> b = 20
= 20
> sum = {a + b}
= <Lazy-Expression>
> sum()
= 30
> a += 1
= 11
> sum()
= 31

> 1 + 1 # plus
= 2

> arr = new Array([1, 2, 3])
= {
  v: [
    1, 2, 3, 
  ]
  ...
}
> arr.push(4)
> arr
= {
  v: [
    1, 2, 3, 4,
  ]
  ...
}

> plus1 = fn(i $Numb) {i + 1} 
> plus1(1) 
= 2

calculator.exe script

> Person = cl {age $Numb, name $Str}
= {
  age: Number
  name: String
}
> inst = new Person(10, "test") 
= {
  age: 10
  name: "test"
}