What is dom-walk?
The dom-walk npm package is a utility for traversing and manipulating the DOM (Document Object Model) in a simple and efficient manner. It allows developers to walk through the DOM tree, either up or down, and apply functions or retrieve information from the DOM elements.
What are dom-walk's main functionalities?
Walking the DOM tree
This feature allows you to traverse all nodes within a specified DOM element (e.g., document.body). The function passed to walk will be called with each node as it is visited.
var walk = require('dom-walk');
var elements = [];
walk(document.body, function (node) {
elements.push(node);
});
Collecting specific elements
This code demonstrates how to use dom-walk to collect all input elements from the DOM. It walks through the DOM and conditionally pushes nodes that are input elements into an array.
var walk = require('dom-walk');
var inputs = [];
walk(document.body, function (node) {
if (node.tagName === 'INPUT') {
inputs.push(node);
}
});
Other packages similar to dom-walk
cheerio
Cheerio is a fast, flexible, and lean implementation of core jQuery designed specifically for the server. Unlike dom-walk, which is primarily used for walking the DOM, cheerio provides a richer API for manipulating the structure and contents of the DOM, making it more suitable for complex parsing and manipulation tasks.
jsdom
jsdom is a pure-JavaScript implementation of many web standards, notably the WHATWG DOM and HTML Standards, for use with Node.js. jsdom goes beyond simple DOM traversal, offering a more comprehensive simulation of a web browser's environment, which includes creating and manipulating a virtual DOM. This makes it more powerful than dom-walk for testing and scraping applications.
dom-walk
iteratively walk a DOM node
Example
var walk = require("dom-walk")
walk(document.body.childNodes, function (node) {
console.log("node", node)
})
Installation
npm install dom-walk
Contributors
MIT Licenced