Function.prototype.a =1;
Object.prototype.b=2;
function A(){}
const a =new A();
console.log(a.a())
console.log(A.a())
console.log(a.b())
console.log(A.b())
const tree = {
value: 2,
children: [
{
value: 3,
children: [],
},
{
value: 4,
children: [
{
value: 5,
children: [{ value: 6, children: [] }],
},
],
},
{
value: 7,
children: [],
},
],
};