JavaScript's isue with "constants"(sic)

soCalledConstants.js

const FOO = 2;
const BAR = {"c": 42};
const BAZ = [12, 14];

BAR.e = 43;
console.log(BAR);
BAZ.push(16);
console.log(BAZ);

/**
 * The following line, as expected, throws an error, as it should happen on lines 5 and 7. I realize this is by design, but I can't accept it.
 *
 * Bottom line: const should only work with scalar values.
 */

FOO = "xyz";