[ad_1]
Asked
Viewed
117k times
I am running into issues when trying to use the DOMParser in my js code. In my code, I retrieve an xml file via xmlhttp.responseText soap response. I want to be able to access its elements in JSON format, so my code looks like:
var xml = new DOMParser();
xml = xml.parseFromString(xmlhttp.responseText, 'text/xml');
var result = xmlToJson(xml);
I get this error message:
ReferenceError: DOMParser is not defined
Edit:
This link hasn’t worked for me because my javascript isn’t in the HTML page, as it is a node.js file. JavaScript DOMParser access innerHTML and other properties
asked Jul 9, 2012 at 15:37
2,2383 gold badges25 silver badges38 bronze badges
A lot of browser functionalities, like DOM manipulations or XHR, are not available natively NodeJS because that is not a typical server task to access the DOM – you’ll have to use an external library to do that.
DOM capacities depends a lot on the library, here’s a quick comparisons of the main tools you can use:
-
jsdom: implements DOM level 4 which is the latest DOM standard, so everything that you can do on a modern browser, you can do it injsdom. It is the de-facto industry standard for doing browser stuff on Node, used by Mocha, Vue Test Utils, Webpack Prerender SPA Plugin, and many other:const jsdom = require("jsdom"); const dom = new jsdom.JSDOM(`<!DOCTYPE html><p>Hello world</p>`); dom.window.document.querySelector("p").textContent; // 'Hello world' -
deno_dom: if using Deno instead of Node is an option, this library provides DOM parsing capabilities:import { DOMParser } from "https://deno.land/x/deno_dom/deno-dom-wasm.ts"; const parser = new DOMParser(); const document = parser.parseFromString('<p>Hello world</p>', 'text/html'); document.querySelector('p').textContent; // 'Hello world'; -
htmlparser2: same as jsdom, but with enhanced performances and flexibility at the price of a more complex API:const htmlparser = require("htmlparser2"); const parser = new htmlparser.Parser({ onopentag: (name, attrib) => { if (name=='p') console.log('a paragraph element is opening'); } }, {decodeEntities: true}); parser.write(`<!DOCTYPE html><p>Hello world</p>`); parser.end(); // console output: 'a paragraph element is opening' -
cheerio: implementation of jQuery based on HTML DOM parsing byhtmlparser2:const cheerio = require('cheerio'); const $ = cheerio.load(`<!DOCTYPE html><p>Hello world</p>`); $('p').text('Bye moon'); $.html(); // '<!DOCTYPE html><p>Bye moon</p>' -
xmldom: fully implements the DOM level 2 and partially implements the DOM level 3. Works with HTML, and with XML also -
dom-parser: regex-based DOM parser that implements a few DOM methods likegetElementById. Since parsing HTML with regular expressions is a very bad idea I wouldn’t recommend this one for production.
answered Apr 13, 2019 at 18:31
13.5k10 gold badges49 silver badges69 bronze badges
0
You can use a Node implementation of DOMParser, such as xmldom. This will allow you to access DOMParser outside of the browser. For example:
var DOMParser = require('xmldom').DOMParser;
var parser = new DOMParser();
var document = parser.parseFromString('Your XML String', 'text/xml');
answered Dec 27, 2015 at 8:42
2,9452 gold badges20 silver badges30 bronze badges
4
I used jsdom because it’s got a ton of usage and is written by a prominent web hero – no promises that it’s behavior perfectly matches your browser (or even that every browser’s behavior is the same) but it worked for me:
const jsdom = require("jsdom")
const { JSDOM } = jsdom
global.DOMParser = new JSDOM().window.DOMParser
answered Jan 8, 2019 at 16:48
3,8241 gold badge27 silver badges20 bronze badges
var DOMParser = require('xmldom').DOMParser;
var doc = new DOMParser().parseFromString(
'<xml xmlns="a" xmlns:c="./lite">\n'+
'\t<child>test</child>\n'+
'\t<child></child>\n'+
'\t<child/>\n'+
'</xml>'
,'text/xml');
answered Jul 7, 2015 at 12:02
571 bronze badge
0
I use yet another DOM parser from html string to DOM and back > Himalaya, or at npmjs.com:
import { parse, stringify } from 'himalaya';
const dom = parse(htmlString)
// Do something here
const htmlStringNext = stringify(dom)
answered Apr 27, 2021 at 23:26
16.1k11 gold badges77 silver badges82 bronze badges
RSS parser is easy for parsing Atom feeds. I you are using NextJs for example you can simply create an API like so:
import Parser from 'rss-parser'
export default async function API(req, res) {
let parser = new Parser();
try {
const feed = await parser.parseURL(`https://www.nasa.gov/rss/dyn/lg_image_of_the_day.rss`);
if (feed) return res.json({ "message": `Here is your data feed title`, status: 200, data: feed.title })
} catch (error) {
return res.json({ "message": "You made an invalid request", status: 401 })
}
}
answered Sep 22, 2021 at 21:42
default
[ad_2]