How to determine if a number variable is even or odd

Demi

Hi there,

I'm trying to build a flow in which Homey can determine if a better logic-variable (number, only integers) is odd or even. I tried it with a beter logic-card (math.js expression is true): math.isInteger (variable) and math.round(variable/2;0) - (variable/2) = 0. However, these expressions doesn't seem to work. Is there another expression I can use? Or is there another option to solve this "problem"?

SailingDuck

You are looking for math.mod. Reference also has an example. 
http://mathjs.org/docs/reference/functions/mod.html

Demi

Math.mod also doesn't work. I used this expression:
math.mod(2, 2) = 0 in the math.js expression is true-card. But test keeps giving a red cross.

caseda

remove the `Math.` part
mathjs cards only work without the `Math.`

Demi

Unfortunately not the solution 

Yannick

try:
mod(2,2) == 0

OpenMind_NL

if:  Math.floor( var / 2 ) * 2 == var ---> var is 'even'