Node.js URL.domainToASCII Last Updated : 11 Jul, 2025 Comments Improve Suggest changes Like Article Like Report The url.host is an inbuilt application programming interface of class URL with in url module. It returns the Punycode ASCII serialization of the domain. If domain is an invalid domain, the empty string is returned. Syntax : const url.domainToASCII Domain value : string Return value : string Example : javascript const url = require('url'); console.log(url.domainToASCII('español.com')); console.log(url.domainToASCII('??.com')); console.log(url.domainToASCII('xn--iñvalid.com')); OUTPUT: xn--espaol-zwa.com xn--fiq228c.com // Prints an empty string in the 3'rd case Note : It performs the inverse operation to url.domainToUnicode(). Create Quiz Comment S samagragupta Follow 0 Improve S samagragupta Follow 0 Improve Article Tags : Web Technologies Node.js ASCII Node-URL Explore Introduction & Installation NodeJS Introduction3 min readNode.js Roadmap: A Complete Guide6 min readHow to Install Node.js on Linux6 min readHow to Install Node.js on Windows5 min readHow to Install NodeJS on MacOS6 min readNode.js vs Browser - Top Differences That Every Developer Should Know6 min readNodeJS REPL (READ, EVAL, PRINT, LOOP)4 min readExplain V8 engine in Node.js7 min readNode.js Web Application Architecture3 min readNodeJS Event Loop5 min readNode.js Modules , Buffer & StreamsNodeJS Modules5 min readWhat are Buffers in Node.js ?4 min readNode.js Streams4 min readNode.js Asynchronous ProgrammingAsync Await in Node.js3 min readPromises in NodeJS7 min readHow to Handle Errors in Node.js ?4 min readException Handling in Node.js3 min readNode.js NPMNodeJS NPM6 min readSteps to Create and Publish NPM packages7 min readIntroduction to NPM scripts2 min readNode.js package.json4 min readWhat is package-lock.json ?3 min readNode.js Deployments & CommunicationNode Debugging2 min readHow to Perform Testing in Node.js ?2 min readUnit Testing of Node.js Application5 min readNODE_ENV Variables and How to Use Them ?2 min readDifference Between Development and Production in Node.js3 min readBest Security Practices in Node.js4 min readDeploying Node.js Applications5 min readHow to Build a Microservices Architecture with NodeJS3 min readNode.js with WebAssembly3 min readResources & ToolsNode.js Web Server6 min readNode Exercises, Practice Questions and Solutions4 min readNode.js Projects9 min readNodeJS Interview Questions and Answers15+ min read Like