no-const-assign
Disallows modifying a variable declared as const.
Modifying a variable declared as const will result in a runtime error.
Invalid:
const a = 0;
a = 1;
a += 1;
a++;
++a;
Valid:
const a = 0;
const b = a + 1;
// `c` is out of scope on each loop iteration, allowing a new assignment
for (const c in [1, 2, 3]) {}