d-link-list
v0.1.4
Published
typescript double linked list implementation with added accessors, removers, and inserter utils. As well as a map function that returns an index on each iteration
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D-Link-List
- A typescript double linked list implementation with added length, accessors, removers, and inserter utils. As well as a map function that returns an index on each iteration. Avoids copies -- which is also something to be aware of when mutating objects
Install
yarn add d-link-list
Sample
import { DLinkList } from "d-link-list";
const doubleList = new DLinkList<string>();
doubleList.push("apple");
doubleList.push("banana");
doubleList.push("cherry");
console.log("push");
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("remove");
doubleList.remove("banana");
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("removeIndex");
doubleList.removeIndex(0);
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("unshift");
doubleList.unshift("apple");
doubleList.unshift("banana");
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("shift");
doubleList.shift();
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("pop");
doubleList.pop();
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("getAtIndex");
let nodeAtIndex = doubleList.getAtIndex(0);
console.log(nodeAtIndex);
console.log("addNext");
doubleList.addNext("apple_next", nodeAtIndex!);
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("addNextToIndex");
doubleList.addNextToIndex("apple_next_to_index", doubleList.length - 1);
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("tailValue");
console.log(doubleList.tailValue());
console.log("getIndexOfNode");
let index = doubleList.getIndexOfNode(nodeAtIndex!);
console.log(`index of ${nodeAtIndex?.value}: ${index}`);
console.log("getByValue");
let nodeByValue = doubleList.getByValue("apple_next");
console.log(nodeByValue?.value);
console.log("removeNode");
doubleList.removeNode(nodeAtIndex!);
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("addPrev");
nodeAtIndex = doubleList.getAtIndex(0);
doubleList.addPrev("apple_prev", nodeAtIndex!);
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("addPrevToIndex");
doubleList.addPrevToIndex("apple_prev_to_index", 0);
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("headValue");
console.log(doubleList.headValue());
console.log("toArray");
console.log(doubleList.toArray());
console.log("removeAtIndex");
doubleList.removeAtIndex(0);
doubleList.map((str, index) => {
console.log(`${index}: ${str}`);
});
console.log("headValue");
console.log(doubleList.headValue());
console.log("removeAtIndex");
doubleList.removeAtIndex(2);
console.log("tailValue");
console.log(doubleList.tailValue());
console.log("for of iterator");
for (let item of doubleList) {
console.log(item);
}
console.log("values iterator (less copies)");
for (let item of doubleList.values()) {
console.log(item);
}