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This article mainly introduces how to insert insert into the node in js, which has a certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let's take a look at it.

1. The judgment position cannot exceed the boundary, that is, the index cannot be less than zero or greater than the length of the linked list, otherwise false is returned.

2. It is necessary to determine whether the index is 0. If the index is 0, it is added to the header.

Point the next pointer of the new node to the current head, and then update the value of head to the newly inserted node.

Example

Insert (position, element) {/ / position cannot exceed the boundary value if (position)

This.length) return false; let node = new Node (element); if (position = 0) {node.next = this.head; this.head = node;} else {let previous = this.find (position-1); node.next = previous.next; previous.next = node;} / / after the node is attached to the linked list, the length of the linked list needs to be added by 1 this.length++; return true } Thank you for reading this article carefully. I hope the article "how to insert insert into nodes in js" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support us and follow the industry information channel. More related knowledge is waiting for you to learn!

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