cssMemSlider codejam

function getFactorial(n) { if (n === 1) return 1; return n * getFactorial(n - 1); }

function getSumBetweenNumbers(n1, n2) { return ((n1 + n2) / 2) * (n2 - n1 + 1); }

function isTriangle(a, b, c) { const max = Math.max(a, b, c); return max < a + b + c - max; }

function doRectanglesOverlap(rect1, rect2) { return rect1.top + rect1.height > rect2.top && rect1.left + rect1.width > rect2.left; }

function getIntervalString(a, b, isStartIncluded, isEndIncluded) { return ${isStartIncluded ? '[' : '('}${a < b ? a : b}, ${a > b ? a : b}${ isEndIncluded ? ']' : ')' }; }

function reverseString(str) { return str.split('').reverse().join(''); }

function reverseInteger(num) { return +num.toString().split('').reverse().join(''); }

function getDigitalRoot(num) { return num .toString() .split('') .reduce((sum, i) => sum + +i, 0) .toString() .split('') .reduce((sum, i) => sum + +i, 0); }

function toNaryString(num, n) { return num.toString(n); }

function getPolynom(...args) { if (args.length === 3) return ((x) => args[0] * x ** 2 + args[1] * x + args[2]); if (args.length === 2) return ((x) => args[0] * x + args[1]); if (args.length === 1) return (() => args[0]); return null; }