Number
An integer number.
A Number is an integer such as 42 or -42. More precisely, a Number is a signed 32-bit integer (an integer value that contains a positive or negative sign as part of it’s information).
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.min(-42, 1000);