Custom Compare Function In Linked List Using JavaScript

1. Overview

Finding a node in a Linked List using a custom compare function in JavaScript is easy. All you need to do is pass a compare function to the list and use it to determine which nodes match the desired criteria. The compare function takes two parameters, which are the current node and the index node, and it compares their values. If the current node’s value is greater than the index’s value, then they are swapped.

Once all nodes have been compared, the list can be iterated over until the desired node is found. Additionally, we can add nodes at the beginning of the list with an unshift method and access them using a get method. To further optimize our search, we can use the sort() method to sort our elements in place and pass a compare function as an argument. This will ensure that all elements are sorted efficiently before searching begins, thus making it easier to find our desired node quickly.

2. Implementation Of Find Node By Means Of Custom Compare Function In Linked List Using JavaScript

  it('Find Node By Means Of Custom Compare Function In Linked List', () => {
    const comparatorFunction = (a, b) => {
      if (a.customValue === b.customValue) {
        return 0;
      }

      return a.customValue < b.customValue ? -1 : 1;
    };

    const linkedList = new LinkedList(comparatorFunction);

    linkedList
      .append({ value: 1, customValue: 'test1' })
      .append({ value: 2, customValue: 'test2' })
      .append({ value: 3, customValue: 'test3' });

    const node = linkedList.find({
      value: { value: 2, customValue: 'test2' },
    });

    expect(node).toBeDefined();
    expect(node.value.value).toBe(2);
    expect(node.value.customValue).toBe('test2');
    expect(linkedList.find({ value: { value: 2, customValue: 'test5' } })).toBeNull();
  });

3. Benefits Of Custom Compare Function In Linked List

The Benefits of using a custom compare function in Linked List using JavaScript are immense. It allows for quick insertion and deletion of items in the middle without having to start resizing, as well as a time complexity of O (n log n). This is much quicker for larger lists and makes it easier to use when you need to make frequent changes. Additionally, it provides an efficient way to search for elements in the list.

By implementing a custom compare function, you can easily determine if two elements are equal or not, which is not possible with arrays. This allows for more accurate results and faster searches. Overall, custom compare functions can help optimize your code and improve performance.

4. Conclusion

The conclusion on custom compare function in linked list using JavaScript is that it can be used to compare two strings represented as linked lists. With the help of this function, we can compare the numbers represented by the linked lists, regardless of whether they contain leading zeros or not. Insertion and removal at the beginning of an array-based data structure can be made easier with a circular array.

Nodes represent data elements in a linked list, which makes traversing of the list easy. Furthermore, a sort function can be used to sort values according to custom comparison rules.

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Dr. Padmaraj works as a code consultant for international students on this platform. Dr. Padmaraj influence young students to achieve their coding dreams. He is a recognized scholar and a leading expert in coding and technology. Today, via devoutput.com he helps students apply their coding skills to create software applications. Doctor.Padmaraj is a renowned author whose books are available worldwide on Amazon.

1. Overview

2. Implementation Of Find Node By Means Of Custom Compare Function In Linked List Using JavaScript

3. Benefits Of Custom Compare Function In Linked List

4. Conclusion

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