Day 5: Template Literals.js

/*
 * Determine the original side lengths and return an array:
 * - The first element is the length of the shorter side
 * - The second element is the length of the longer side
 * 
 * Parameter(s):
 * literals: The tagged template literal's array of strings.
 * expressions: The tagged template literal's array of expression values (i.e., [area, perimeter]).
 */
function sides(literals, ...expressions) {
    // ES6 allows destructuring of arrays into multiple variables
    const [a, p] = expressions;
    // Perform this operation only once and assign to variable
    const root = Math.sqrt((p*p)-(16*a))
    const s1 = (p + root)/4;
    const s2 = (p - root)/4;
    // s2 will always be smaller because of the (-/+) above
    return ([s2, s1]);
}