node = node.next doesnt work at linked list-CodePudding

Im doing remove function, that deletes node from it. Im trying to do recursive to work with any length. And now I stuck with one problem:

a = {value: 1, next: {value: 2, next: {value: 3, next: null}}}
let node = a.next;
node = node.next;
console.log(a)

Why its not rorking? It works only with a.next = a.next.next; instead of node = node.next. How to solve this?

CodePudding user response：

You need to log the variable node instead of a, Since we mutate node and not a

a = {value: 1, next: {value: 2, next: {value: 3, next: null}}}
let node = a.next;
node = node.next;
console.log(node)

You can also mutate the next property inside node since It's pass by reference.

a = {value: 1, next: {value: 2, next: {value: 3, next: null}}}
let node = a.next;
node.next = node.next.next;
console.log(a)

CodePudding user response：

It's not working because you're reassigning the node variable, but not the next property of the original node.

a = {value: 1, next: {value: 2, next: {value: 3, next: null}}}
let node = a.next;
node.next = node.next.next;
console.log(a)