Convert numbers to integers with cint().

cint.js

/**
 * @license Copyright 2019 - Chris West - MIT Licensed
 * 
 * Converts a number into an integer.
 * @param  {*} num
 *     The value to convert into an integer.
 * @param  {boolean|null} opt_infinityBiased
 *     Optional.  If a true-ish value is specified the number will be rounded
 *     towards `Infinity` if positive or `-Infinity` if negative.  If not given,
 *     or if `null` or `undefined` is specified the number will be rounded.  If
 *     a false-ish value is specified the number will be rounded towards `0`.
 * @return {number}
 *     The integer version of the specified number.
 */
function cint(num, opt_infinityBiased) {
  num = +num;
  return Math[opt_infinityBiased == null ? 'round' : (num < 0) === !opt_infinityBiased ? 'ceil' : 'floor'](num);
}

console.log(`cint(${x = 1.3}, ${y = true}) -> ${cint(x, y)}`);
console.log(`cint(${x = -1.3}, ${y = true}) -> ${cint(x, y)}`);
console.log(`cint(${x = 2.7}, ${y = false}) -> ${cint(x, y)}`);
console.log(`cint(${x = -2.7}, ${y = false}) -> ${cint(x, y)}`);
console.log(`cint(${x = 3.499}) -> ${cint(x)}`);
console.log(`cint(${x = -3.499}) -> ${cint(x)}`);
console.log(`cint(${x = 3.5}) -> ${cint(x)}`);
console.log(`cint(${x = -3.5}) -> ${cint(x)}`);
console.log(`cint(${x = 3.501}) -> ${cint(x)}`);
console.log(`cint(${x = -3.501}) -> ${cint(x)}`);

https://www.yourjs.com/console/?gist=9553052&file=cint.js