Number

An integer number.

A Number is an integer such as 42 or -42. More precisely, a Number is a signed 32-bit integer (two’s complement).

Declare a number variable

You can assign a number to a variable:

let num = 42;
basic.showNumber(42);

Arithmetic operators

The following arithmetic operators work on numbers and return a Number:

addition: 1 + 3
subtraction: 1 - 3
multiplication: 3 * 2
integer division: 7 / 3
modulo is available through the math library

Relational operators

The following relational operators work on numbers and return a Boolean:

equality: (3 + 1) = 4
inequality: 3 != 4
less or equal than: 3 <= 4
less than: 3 < 4
greater or equal than : 4 >= 3
greater than: 4 > 3

Show number

The show number function displays a number on the LED screen. For example, this code displays the number 42:

basic.showNumber(42);

Functions that return a number

Some functions return a number, which you can store in a variable. For example the following code gets the display brightness (using the brightness function) and stores the value in a variable named brightness:

let brightness = led.brightness()

Math functions

The math library includes math related functions. For example, the absolute function returns the returns the absolute value of input parameter x:

let abs = Math.abs(-42);
basic.showNumber(abs);