A minor mistake in Chapter 5

[richardmyu]

Thanks for the excellent book!
I found a minor mistake in chapter05/03-DoublyLinkedList2.js :

insert(){
if () {
if () {
...
} else if (position === this.size()) {
//error
current = tail;
//ok
current = this.getTail();
} else {
...
}
}
}

[loiane]

Thanks @richardmyu - this has been fixed in the newest edition of the book. Source code is available at the master branch

[easyandme]

@loiane Hi Loiane. Thank you for this great book!

it seems that in the current Graph implementation, one can add duplicate edges to the adjacency list - is this expected? Thank you!

[loiane]

@maxim-xu You are correct, let me review the code to prevent this behavior. Thanks for pointing it out!