Number

A Number value can represent a floating point number:

let myNumber = 10.0;

myNumber = 0.005;

myNumber = -5.456e3;

myNumber = 5e-5;

To distinguish a Number value from an Integer value, the decimal dot separator should always be used:

let myInteger = 10;

let myNumber = 10.0;

Mixing numbers and integers

Combining Number values and Integer values with basic operations work as you would expect: Integer values are promoted to Number values and the result is a Number value. However comparing Integers and Numbers is not allowed to avoid any ambiguity, you have to convert one to the other:

// Compares an integer and a number

if (5 * 1.0 > 4.0) {

}

// Compares a number and an integer, rounding the integer

if (math.round(5.6) > 4) {

}

// Compares a number and an integer discarding the fractional part

if (math.floor(5.6) > 4) {

}

VM Internals

A Number is internally represented as double-precision 64-bit IEEE 754.