JuniorTheoryCommon

What does the program print?

JavaScript

console.log(7 / 2, -7 % 3, Math.floor(7 / 2));

3.5 -1 3

Expecting 3 for 7 / 2: JavaScript has one number type for whole numbers and fractions, so / keeps the fraction and gives 3.5.
Expecting a non-negative remainder, as in math: in JavaScript the remainder takes the sign of the number being divided, so -7 % 3 is -1.

What does Math.trunc(-7 / 2) print, and how does it differ from Math.floor(-7 / 2)?
How would you get a remainder that is never negative for -7 and 3?

JuniorTheoryCommon

JavaScript

console.log(7 / 2, -7 % 3, Math.floor(7 / 2));

3.5 -1 3

Expecting 3 for 7 / 2: JavaScript has one number type for whole numbers and fractions, so / keeps the fraction and gives 3.5.
Expecting a non-negative remainder, as in math: in JavaScript the remainder takes the sign of the number being divided, so -7 % 3 is -1.

What does Math.trunc(-7 / 2) print, and how does it differ from Math.floor(-7 / 2)?
How would you get a remainder that is never negative for -7 and 3?