function destructuring assigned parameters were not passed by reference

function_destructuring.js

var a = { a: 1, b: 2, c:3 };
var b = { d: 4, e:5 };

function d1(obj) {
  obj.a = 5;
}

d1(a)
// a = { a: 5, b: 2, c: 3 }


function d2(obj) {
  obj.c = b;
}

d2(a)
// a = { a: 5, b: 2, c: { d: 4, e:5 } }

// function destructuring assigned parameters were not passed by reference
function d3({ a, b, c }) {
  c = 7;
}

d3(a)
// a = { a: 5, b: 2, c: { d: 4, e:5 } }
// a.c was not updated