JavaScript Expressions

An example of using JavaScript expressions within widgets.

Fibonacci

Calculate fibonacci numbers

JavaScript code

function(n) { if (n == 0) { return 0 } else if (n == 1) { return 1 } else { return userdata.fibonacci(n - 1) + userdata.fibonacci(n - 2) } }

F0 0

F1 1

F2 1

F3 2

F4 3

F5 5

F6 8

F7 13

FizzBuzz

Calculate the "fizz buzz" interview question

JavaScript code

function(n) { if ((+n % 15) == 0) return { value: 'Fizz Buzz', color: 'red' } else if ((+n % 5) == 0) return { value: 'Buzz', color: 'green' } else if ((+n % 3) == 0) return { value: 'Fizz', color: 'blue' } else return { value: n } }

Number	Fizziness
1	1
2	2
3	Fizz
4	4
5	Buzz
6	Fizz
7	7
8	8
9	Fizz
10	Buzz
11	11
12	Fizz
13	13
14	14
15	Fizz Buzz
16	16