Modulo - JavaScript Challenge

Question

What is the output of this code?

var a = 66;
var b = a%4;
var c = b%a;
alert(c);

/* My thinking: var b = 66/4= 16.5 (remainder 2, so b=2). Next, c=2%66 or 2/66 = 1/33 or .03 which I rounded down to floor of 0. I and my challenger both got this one wrong. 🤷🏽‍♀️

Answer 1

You can copy the code into a script on playground and test it there to see what happens.

Example:
4%40 = 4
How often does 40 go in 4? 0 times, so 4 is left as remainder.

Answer 2

Jayakrishna🇮🇳 Thank you. What I really had trouble with was b%a (2%66). The rest of it, I understood. Thank you.

Answer 3

Lisa Ok. Thank you. I think I have it now. Anytime the denominator is larger than the numerator, the % will be the numerator itself.

Answer 4

% returns reminder
/ returns quotient
66/4 = 16 , => 16*4=64
66%4 = 2 , => 66 - 16*4 = 2 reminder (since 16*5 exceeds 66, 16*4+2=66 )