vis-data

What is vis-data?

The vis-data npm package is a data management library that provides a way to manage and manipulate data sets. It is part of the vis.js suite of visualization tools and is particularly useful for handling data in a structured and efficient manner, making it easier to integrate with visualization components.

What are vis-data's main functionalities?

DataSet

The DataSet class allows you to create a collection of items. You can add, update, and remove items, and retrieve them in various ways. This is useful for managing data that will be visualized or manipulated.

const { DataSet } = require('vis-data');
const data = new DataSet();
data.add({ id: 1, text: 'item 1' });
data.add({ id: 2, text: 'item 2' });
console.log(data.get());

DataView

The DataView class allows you to create a filtered or transformed view of a DataSet. This is useful for creating different perspectives on the same data without duplicating it.

const { DataSet, DataView } = require('vis-data');
const data = new DataSet([
  { id: 1, text: 'item 1', group: 'A' },
  { id: 2, text: 'item 2', group: 'B' }
]);
const view = new DataView(data, { filter: item => item.group === 'A' });
console.log(view.get());

Event Handling

The DataSet class supports event handling, allowing you to listen for changes to the data. This is useful for reacting to data changes in real-time, such as updating a visualization when the underlying data changes.

const { DataSet } = require('vis-data');
const data = new DataSet();
data.on('*', (event, properties, senderId) => {
  console.log('Event:', event, 'Properties:', properties, 'SenderId:', senderId);
});
data.add({ id: 1, text: 'item 1' });

Other packages similar to vis-data

lodash

Lodash is a modern JavaScript utility library delivering modularity, performance, and extras. It provides a wide range of functions for manipulating arrays, objects, and other data structures. While it is not specifically designed for managing data sets like vis-data, it offers many similar functionalities for data manipulation.

immutable

Immutable.js provides immutable data structures, which can help you write more predictable and performant code. It offers a different approach to data management compared to vis-data by ensuring that data cannot be modified once created, which can be beneficial in certain scenarios.

rxdb

RxDB is a real-time NoSQL database for JavaScript applications. It provides a way to manage and synchronize data across different clients and servers. While it offers more advanced features like real-time synchronization and offline support, it can be seen as a more complex alternative to vis-data for managing data collections.

README

vis-data

This module is part of the visjs project

Sources

• https://github.com/almende/vis/blob/master/lib/DataSet.js
• https://github.com/almende/vis/blob/master/lib/DataView.js
• https://github.com/almende/vis/blob/master/lib/Queue.js

License

Copyright (C) 2010-2019 Almende B.V. and Contributors

Vis.js is dual licensed under both

• The Apache 2.0 License http://www.apache.org/licenses/LICENSE-2.0

and

• The MIT License http://opensource.org/licenses/MIT

Vis.js may be distributed under either license.