836-rectangle-overlap

/**
 * @param {number[]} rec1
 * @param {number[]} rec2
 * @return {boolean}
 */
var isRectangleOverlap = function(rec1, rec2) {
    return (Math.min(rec1[2],rec2[2]) > Math.max(rec1[0],rec2[0]) ) &&
    (Math.min(rec1[3],rec2[3]) > Math.max(rec1[1],rec2[1]) );
};