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fbjs

A collection of utility libraries used by other Facebook JS projects

  • 3.0.5
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What is fbjs?

The fbjs package is a collection of utility libraries used by Facebook in building its JavaScript applications. It is not specifically designed for external use but offers various utilities that can be beneficial in web development, such as manipulation of DOM elements, event handling, and AJAX requests.

What are fbjs's main functionalities?

DOM Manipulation

This feature allows developers to check if one DOM element is contained within another. The function 'containsNode' from fbjs can be used to verify if a specific child node is a descendant of a given parent node.

import { containsNode } from 'fbjs/lib/containsNode';
const parent = document.getElementById('parent');
const child = document.getElementById('child');
console.log(containsNode(parent, child));

Event Handling

fbjs provides utilities for handling DOM events. The 'addEvent' function can be used to attach event listeners to DOM elements, simplifying the process of managing events.

import { addEvent } from 'fbjs/lib/EventListener';
const button = document.getElementById('myButton');
addEvent(button, 'click', function() { alert('Button clicked!'); });

AJAX Requests

The 'fetchWithRetries' function from fbjs enhances the standard fetch API by adding automatic retries for failed requests, which is particularly useful in network-unstable environments.

import { fetchWithRetries } from 'fbjs/lib/fetchWithRetries';
fetchWithRetries('https://api.example.com/data', {
  method: 'GET'
}).then(response => response.json()).then(data => console.log(data));

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Package last updated on 01 Jun 2023

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