vis-util

What is vis-util?

The vis-util npm package provides utility functions that are commonly used in the vis.js library, which is a dynamic, browser-based visualization library. These utilities include functions for data manipulation, DOM manipulation, and other helper functions that facilitate the creation and management of visualizations.

What are vis-util's main functionalities?

Data Manipulation

This feature allows you to manipulate data arrays easily. In this example, the `map` function is used to double the values in the data array.

const util = require('vis-util');

const data = [
  { id: 1, value: 10 },
  { id: 2, value: 20 },
  { id: 3, value: 30 }
];

const mappedData = util.map(data, item => item.value * 2);
console.log(mappedData); // [20, 40, 60]

DOM Manipulation

This feature provides utility functions for DOM manipulation. In this example, the `addClassName` function is used to add a class to a DOM element.

const util = require('vis-util');

const div = document.createElement('div');
div.id = 'myDiv';
document.body.appendChild(div);

util.addClassName(div, 'myClass');
console.log(div.className); // 'myClass'

Deep Object Cloning

This feature allows for deep cloning of objects. In this example, the `deepExtend` function is used to create a deep copy of an object.

const util = require('vis-util');

const obj = { a: 1, b: { c: 2 } };
const clonedObj = util.deepExtend({}, obj);
console.log(clonedObj); // { a: 1, b: { c: 2 } }

Other packages similar to vis-util

lodash

Lodash is a modern JavaScript utility library delivering modularity, performance, and extras. It provides a wide range of utility functions for common programming tasks, including data manipulation, object cloning, and more. Compared to vis-util, lodash offers a more extensive set of utilities and is more widely adopted.

underscore

Underscore is a JavaScript library that provides a whole mess of useful functional programming helpers without extending any built-in objects. It offers similar functionalities to vis-util, such as data manipulation and object handling, but is less modular compared to lodash.

ramda

Ramda is a practical functional library for JavaScript programmers. It makes it easy to create functional pipelines and offers utilities for data manipulation and function composition. Ramda focuses more on functional programming paradigms compared to vis-util.

README

vis-util

This module is part of the visjs project