FAQ: Functions and Operations - Conditionals


This community-built FAQ covers the “Conditionals” exercise from the lesson “Functions and Operations”.

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This exercise can be found in the following Codecademy content:

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FAQs on the exercise Conditionals

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In the following SASS exercise, how does the code differentiate between the odd and even numbers?
width: if($i % 2 == 0, 300px, 350px);
margin-left: if($i % 2 == 0, 0px, 50px);




The modulo operator ‘%’ is used to differentiate between odd and even numbers.
Every even number divided by 2 has a remainder equal to 0.
For example: 4 mod 2 = 0, and in code it works the same, but modulo has its own symbol ‘%’: 4 % 2 = 0.
Uneven numbers don’t have a remainder equal to 0, so e.g.: 5 % 2 = 1.

width: if($i % 2 == 0, 300px, 350px);

So, basically:

width: if( $condition, $value-if-true, $value-if-false);

Even numbers evaluate to true, and uneven to false.