Daily Challenge #136 - The Deaf Rats of Hamelin, Daily Challenge #137 - Help the Bookseller, Daily Challenge #140 - I love you, a little, a lot, passionately not at all, Daily Challenge #150 - Boggle Guess Validator, Daily Challenge #151 - Reverse Parentheses, Daily Challenge #152 - Strongest Number in an Interval, Daily Challenge #154 - Stable Arrangement, Daily Challenge #155 - Royal Arranged Marriages, Daily Challenge #163 - Significant Figures, Daily Challenge #165 - Password Lost in a Grid, Daily Challenge #167 - Return String As Sorted Blocks, Daily Challenge #168 - [Code golf] f (f (f b)) = f b, Daily Challenge #170 - Pokemon Damage Calculator, Daily Challenge #171 - Ordering Beers in Poland, Daily Challenge #172 - Find All in an Array, Daily Challenge #174 - Soccer League Table, Daily Challenge #178 - Create Phone Numbers, Daily Challenge #179 - Hide Phone Numbers, Daily Challenge #183 - Automorphic Numbers, Daily Challenge #189 - Convert Number into Reversed Array, Daily Challenge #190 - capitalizeFirstLast, Daily Challenge #191 - Alphabetical Addition. Daily Challenge #55 - Building a Pile of Cubes, Daily Challenge #58 - Smelting Iron Ingots, Daily Challenge #60 - Find the Missing Letter, Daily Challenge #65- A Disguised Sequence, Daily Challenge #69 - Going to the Cinema, Daily Challenge #70 - Pole Vault Competition Results, Daily Challenge #71 - See you next Happy Year, Daily Challenge #78 - Number of Proper Fractions with Denominator d, Daily Challenge #80 - Longest Vowel Change, Daily Challenge #83 - Deodorant Evaporator, Daily Challenge #84 - Third Angle of a Triangle. Coding since 11yo, that makes it over 30 years now ~~~ Daily Challenge #193 - What's the Real Floor? How to capture video from default camera in OpenCV using C++? This will result in a string containing 'else.com'. Frontend developer and aspiring Fullstack developer from India. How To Combine These 2 Regexp in Javascript. Is it patent infringement to produce patented goods but take no compensation? Daily Challenge #86 - Wouldn't, not Would. Should I remove older low level jobs/education from my CV at this point? Daily Challenge #195 - No Zeroes for Heroes, Daily Challenge #199 - List of All Rationals, Daily Challenge #200 - Longest Linear Palindromic Substring, Daily Challenge #201 - Complete the Pattern, Daily Challenge #202 - Complete the Pattern II, Daily Challenge #205 - Consonant String Value, Daily Challenge #206 - Pound Means Backspace, Daily Challenge #207 - Snakes and Ladders, Daily Challenge #208 - Delete Occurrences of an Element, Daily Challenge #210 - Separate Capitalization, Daily Challenge #211 - Product Partitions. Email yo+challenge@dev.to with your suggestions! Developer. This routine won't properly process bad domains like example..com. This routine will work on just domain names or entire URLs, and the URLs don't have to have the http or https protocol -- it could be ftp, chrome, and others. DEV Community A constructive and inclusive social network for software developers. Your comment is what's wrong with development today. Even "com" or whatever other TLD is a domain name. Except for mine. How to Round Double to Any Decimal Place in Java, 200 lines of js code, take you to implement the code compiler, Loop through all tables in a database SQL Server, Node_modulesnode-sassvendorwin32-x64-64binding node is not a valid Win32 application, What is the use of magic table in SQL Server. Note the {3,} -- that means 3 or more of something, which is why we handle the TLDs that are 3 or more characters too. Daily Challenge #89 - Extract domain name from URL, Daily Challenge #96 - Easter Egg Crush Test, Daily Challenge #101 - Parentheses Generator, Daily Challenge #105 - High-Sum Matrix Drop, Daily Challenge #106 - Average Fuel Consumption, Daily Challenge #108 - Find the Counterfeit Coin, Daily Challenge #109 - Decorate with Wallpaper, Daily Challenge #110 - Love VS. Daily Challenge #255 - Is There an Odd Bit? Skipping a calculus topic (squeeze theorem). Made with love and Ruby on Rails.

Note: Assuming the string will always start with either http:// or https:// or nothing but not supporting any other protocols (by lazyness). salientSubdomain is the human-readable part of a domain name host as reqd. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Daily Challenge #43 - Boardgame Fight Resolver. Which equals operator (== vs ===) should be used in JavaScript comparisons? Why does the capacitance value of an MLCC (capacitor) increase after heating? Daily Challenge #135 - The Wide Mouthed Frog! Here is the link to above regex. What is Node.Js? :[^@\\n][emailprotected])?(?:www\\.)?([^:\\/\\n? How do map designers subconsciously lead players? ~ angularfix, Expand a div to display an image - JavaScript, How to Modify Nodes in an Abstract Syntax Tree, Waterfall Chart and How to Create It with JavaScript (HTML5), Excel Worksheet Filtering Sample - Excel Worksheet Filtering with Javascript Excel Control, Tutorial: Creating and managing a Node.js server on AWS, part 1, Deserialization of JSON string to object list, Using Array of JSON Objects in JavaScript, Building a Desktop App with Electron and Vue.js, Ajax Call to Map Inside Tabbed Panel - JavaScript, How to Check Whether a String Contains a Substring in JavaScript. Is there a difference between truing a bike wheel and balancing it? 2021 FaqCode4U.com. I try to stay as generalist as I can in this crazy wide place coding is at now. Always learning new things. It labels this into a named capture group called domain. Daily Challenge #221 - The Merchant of York, Daily Challenge #222 - Parse Bank Account Numbers, Daily Challenge #223 - Responsible Drinking, Daily Challenge #224 - Password Validator, Daily Challenge #226 - Array to HTML Table, Daily Challenge #227 - Android Lock Screen, Daily Challenge #228 - Best Profit in Single Sale, Daily Challenge #233 - Get Planet Name by ID, Daily Challenge #235 - Reversing a Process, Daily Challenge #236 - RGB to Hex Conversion, Daily Challenge #237 - Delete Extra Occurrences, Daily Challenge #238 - One is the Loneliest Number, Daily Challenge #242 - Expressions Matter, Daily Challenge #244 - Search for Letters, Daily Challenge #245 - Sort Santa's Reindeer, Daily Challenge #246 - Readable Specification Pattern, Daily Challenge #247 - Get Planet Name By ID, Daily Challenge #249 - Incremental Changes, Daily Challenge #250 - Last Digit of a Large Number, Daily Challenge #251 - Largest Number in a Sequence, Daily Challenge #252 - Everybody hates Mondays, Daily Challenge #253 - Sort Sentences Pseudo-alphabetically. I think I can mod to exclude bad domains given too such as, @MarkII, yeah, you can string pretty much any other checks you want on top of that. So, you need firstmost hostname stripped from your result, unless there only two parts already? Note2: This won't work for the URIs that have a dot in their name, still working on it. If you want to get the subdomain, split the result from one of the matches of above regex with the first occurrence of . :D. No I didn't and I assume it will fail for this particular case. I tried your first rule without the www preservation. ZDiTect.com All Rights Reserved. I don't know how to combine the two match rules into a single regexp, however. I'm just writin about this . This is what I've come up with. This is equivalent to killing a fly with a Sherman tank. It has the same effect as: On domains, I tried ones like 'data.example.co.uk', 'example.co.uk', and 'example.com'. So, if you just want the root alone, then you could use this solution: Thanks for contributing an answer to Stack Overflow!

I love web development and coding in general. Once unsuspended, thepracticaldev will be able to comment and publish posts again. I've also added. Daily Challenge #16 - Number of People on the Bus, Daily Challenge #19 - Turn numbers into words, Daily Challenge #21 - Human Readable Time, Daily Challenge #31 - Count IPv4 Addresses. Can you please explain what Is there any criminal implication of falsifying documents demanded by a private party? check below examples, regex comes out to be 15x faster than the built-in module. Why and How You Should Use It? There is absolutely no reason on earth to include a library with hundreds of lines of code to perform a simple operation. What are good particle dynamics ODEs for an introductory scientific computing course? Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, This looks to be the best solution so far. If you absolutely want to preserve the www into your regex, you could try this one: /^(?:https?:\/\/)?(?:[^@\n]+@)?(?:www\.)?(?:[^.]+\.)?([^:\/\n\?\=]+)/im. var d = new Date() does and how? Can anyone Identify the make, model and year of this car? Friendship, Daily Challenge #111 - 99 Bottles of Beer, Daily Challenge #112 - Functions of Integers on the Cartesian Plane, Daily Challenge #113 - Iterative Rotation Cipher, Daily Challenge #115 - Look and Say Sequence, Daily Challenge #116 - Shortest Knight Path, Daily Challenge #118 - Reversing a Process, Daily Challenge #119 - Adding Big Numbers, Daily Challenge #120 - Growth of a Population. Is a neuron's information processing more complex than a perceptron? rev2022.7.21.42639. Daily Challenge #15 - Stop gninnipS My sdroW! /^(?:https?:\\/\\/)?(? is this translatable to JS (I'm actually using Google Script FYI)? Daily Challenge #121 - Who has the most money? From there, we then do another pass on this and instead of looking from the left-to-right like you would with the preceding ^ symbol, we use the ending $ symbol, working right-to-left, and allow only 4 conditions on the end: .xx.xx, .xx, .xxx, or more than .xxx (such as 4+ character TLDs), where x is a non-word boundary item. If you click a merchant link and buy a product or service on their website, we How To Make An Object Eligible For Garbage Collection In Java? Loves to have any time of the day. To learn more, see our tips on writing great answers. How can I validate an email address in JavaScript? Just postprocess your result from first match with regexp matching that condition: /^(?:https?:\/\/)?(?:[^@\n]+@)?(?:[^.]+\.)?([^:\/\n\?\=]+)/im. Daily Challenge #134 - Rice and Chessboard Problem. It also prevents the domain match from including a port such as :8080 as an example. and only accessible to dev.to staff. Trending is based off of the highest score sort and falls back to it if no posts are trending. Learning TypeScript, Software Design and Architecture. Are you sure you want to hide this comment? It does, however, account for TLDs that are in the variety of .xx, .xx.xx, .xxx, or more than 4 character TLDs on the end. I did find another SOF that tries to solve in PHP, unfortunately I don't know PHP. Copyright 2010 - Coder. If thepracticaldev is not suspended, they can still re-publish their posts from their dashboard. If given an empty string, it just returns an empty string back. We're a place where coders share, stay up-to-date and grow their careers. Once suspended, thepracticaldev will not be able to comment or publish posts until their suspension is removed. It will become hidden in your post, but will still be visible via the comment's permalink.

]+)/img, Why asinstanceof doesnt throw a classcastexception, How can i use linq with a class that has parallel arrays, Value of protocol type 39encodable39 cannot conform to 39encodable39 only structenumclass types can conform to protocols, Get outer class name for nested class python, Tomcat amp spring web class not found exception orgspringframeworkwebcontextcontextloaderlistener, Entity framework change database physical location by class, Java 8 how to transform a list of arrays into a list of a specific class objec, Porting an existing class structure to smart pointers, Apply css to a group of css classes containing col substring, In nested classes how to access outer classs elements from nested class in pyt, How to make angular forms ngmodel classes inherit from bootstrap forms classes, How to connect delegate from custom class in xib, Vue js multiple condition class binding, Jackson cannot deserialize single field class although, Dependency injection with a static logger static helper class, Where to i put my importsql file not sure where the root of my class path is, Form model classes dtos gt symfony 4 forms build, How to map a class properties in dynamodb without using attribute in net, Swift protocol error 39weak39 cannot be applied to non class type, Type is not assignable to type intrinsicattributes intrinsicclassattribu, Jquery quotclassquotclick multiple elements click event once, Could not find or load main class when trying to format namenode hadoop install, Matlab class based unit tests how to pass in variable to test, Django generic class view post http 405 method not allowed, Angular2 how to access class constants in html, Printing attributes of objects in a class in python, How to apply default value to python dataclass field when none was passed, How to feed lstm when training data is in multiple csv files of time series of different length, Populating a combobox in class library error 39controls39 does not exist in the namespace 39systemwindows39 works in wpf project, Error in php class with predefined values, Error retrieving the com class factory for component with clsid when starting, Protobufnet base class properties is not included when serializing derived class, Get the domain name from a link using regex. DEV Community 2016 - 2022. Try your example with Javascript's, Design patterns for asynchronous API communication. (edited because def dot to removed the www from my youtube URL.). This one was interesting. const { hostname } = a; Next, it looks for all non-word boundary stuff except allows the dash and period like you'd potentially see in domains. Making statements based on opinion; back them up with references or personal experience. In the US, how do we make tax withholding less if we lost our job for a few months? However, I'll keep the above for reasons where you may want to get both values, although the function only returned the root (but with a quick edit, could have returned both full domain and root domain). "a" probably is an object which has the hostname property so that assignment extracts hostname. How to create serial number using ng-repeat in AngularJS ? For further actions, you may consider blocking this person and/or reporting abuse. This is because the regex itself will match the complete string and the capturing group will be mapped to $1. All rights reserved, Passing variable to partial undefined local variable or method error, How to find what depends on a specific version of a specific dependency, Quotsource code does not match the bytecodequot for system files on huawei, Why asinstanceof doesnt throw a classcastexception, How can i use linq with a class that has parallel arrays, Value of protocol type 39encodable39 cannot conform to 39encodable39 only structenumclass types can conform to protocols, Get outer class name for nested class python, Tomcat amp spring web class not found exception orgspringframeworkwebcontextcontextloaderlistener, Entity framework change database physical location by class, Java 8 how to transform a list of arrays into a list of a specific class objec, Porting an existing class structure to smart pointers, Apply css to a group of css classes containing col substring, In nested classes how to access outer classs elements from nested class in pyt, How to make angular forms ngmodel classes inherit from bootstrap forms classes, How to connect delegate from custom class in xib, Jackson cannot deserialize single field class although, Dependency injection with a static logger static helper class, Where to i put my importsql file not sure where the root of my class path is, Form model classes dtos gt symfony 4 forms build, How to map a class properties in dynamodb without using attribute in net, Swift protocol error 39weak39 cannot be applied to non class type, Type is not assignable to type intrinsicattributes intrinsicclassattribu, Jquery quotclassquotclick multiple elements click event once, Could not find or load main class when trying to format namenode hadoop install, Matlab class based unit tests how to pass in variable to test, Django generic class view post http 405 method not allowed, Angular2 how to access class constants in html, Printing attributes of objects in a class in python, How to apply default value to python dataclass field when none was passed, How to feed lstm when training data is in multiple csv files of time series of different length, Populating a combobox in class library error 39controls39 does not exist in the namespace 39systemwindows39 works in wpf project, Error in php class with predefined values, Error retrieving the com class factory for component with clsid when starting, Protobufnet base class properties is not included when serializing derived class. Do you have any way on improving this one? Once unpublished, all posts by thepracticaldev will become hidden and only accessible to themselves. Daily Challenge #192 - Can you Survive the Zombies? Get code examples like"javascript regex get domain from url". check below examples, regex comes out to be 15x faster than the built-in module, If you want to get the subdomain, split the result from one of the matches of above regex with the first occurrence of . Please, please, for the love of God and companies everywhere that are sick of obfuscated, confusing unmanageable, unmaintainable and insecure code, please look at the one line pure Javascript code above this answer. Note: regex is faster than language built-in modules. EDIT: EDIT: Since posting this answer, I learned how to combine the full domain and the root part into one single RegExp. Embedding JavaScript in HTML (JavaScript: The Definitive Guide, 4th Edition), node.js - https://127.0.0.1:9000/peerjs/peerjs/id?ts=14993271469660.591159722513086 net :: ERR_CONNECTION_REFUSED, Creating an Image Editor Using CamanJS: Creating Custom Filters and Blend Modes, ASP.NET, AngularJS & html5Mode on IIS: First Trial, Taking advantage of npm ci - Build Environment, How to resolve Entity Framework error: provider type "System.Data.Entity.SqlServer.SqlProviderServices" for the "System.Data.SqlClient" ADO.NET provider could not be loaded, Thread Synchronization and Semaphores in C#. Note: regex is faster than language built-in modules. document.write(d.getFullYear()) Daily Challenge #54 - What century is it? Uniform_Resource_Identifier on wikipedia. I tried with URLs and just domains themselves. What do you want to get for something like "a.b.c.ac.il"? Find centralized, trusted content and collaborate around the technologies you use most. may How to check whether a string contains a substring in JavaScript? Have a PhD in Comp Sci ~~~ Currently I can extract the 'domain' from any URL with the following regex: /^(?:https?:\/\/)?(?:[^@\n]+@)?(?:www\.)?([^:\/\n\?\=]+)/im. Looking for new opportunities! Daily Challenge #289 - Manhattan Distance, Daily Challenge #292 - ISBN-10 Identifiers, Daily Challenge #293 - Name the Operations, Daily Challenge #294 - Sum and GCD Practice, Daily Challenge #296 - Years to Centuries, Daily Challenge #297 - Loneliest Character, Daily Challenge #298 - Find the Shortest Word, Daily Challenge #300 - Username / Password Comparison, Daily Challenge #303 - Frequent Days in a Year, Daily Challenge #304 - Consecutive Letters, Daily Challenge #305 - Remove Anchors from URLs, Daily Challenge #306 - Largest Possible Product, Daily Challenge #307 - Spanish Conjugator, Daily Challenge #309 - Coffee Customization, Daily Challenge #310 - Boolean to String Conversion, Daily Challenge #311 - Connect the Letters, Daily Challenge #312 - Describe the Function, https://github.com/thepracticaldev/dev.to, "https://dev.api.domain.com/something.cool", https://will:p4ssw0rd@google.com?q=cybersecurity. Write more code and save time using our ready-made code examples. Daily Challenge #132 - Is my friend cheating? How to print number of paragraphs in textview in android? However I'm also getting subdomain's too which I want to avoid. What are the purpose of the extra diodes in this peak detector circuit (LM1815)? Try it: codesandbox.io/s/affectionate-dawn Jesus, NO! Daily Challenge #217 - SMS w/ an Old Phone, Daily Challenge #218 - Possible Sides of a Non-Right Triangle. .

(vis by Debuggex, which rocks), considering subdomains & second-level domains (ie. So basically, the first routine strips out any potential stuff before the ://, if that exists, or just a :, if that exists. If a creature's best food source was 4,000 feet above it, and only rarely fell from that height, how would it evolve to eat that food? Which Terry Pratchett book starts with "Zoom in"? They can still re-publish the post if they are not suspended. Software engineer at RatherKeepItASecret. Scientifically plausible way to sink a landmass. How do I remove a property from a JavaScript object? form search jquery ip validation for only one IP, Angularjs Pagination Index Issue? I'm a full stack web developer with experience in AWS, TypeScript and React.

The hostname extractor regex looks fairly funky but isn't too bad if you break it down into parts Love to go on bike tours ~~~ Taking the shortest solution that seems to somehow solve the vague requirements and declaring it solved and secure. mv fails with "No space left on device" when the destination has 31 GB of space remaining. Daily Challenge #213 - Are they the "same"? Built on Forem the open source software that powers DEV and other inclusive communities. necessarily indicate any affiliation or endorsement of FaqCode4U.com. Daily Challenge #125 - 23 Matches or More, Daily Challenge #126 - The Supermarket Line, Daily Challenge #127 - Playing with Passphrases, Daily Challenge #129 - Clay Pigeon Shooting, Daily Challenge #131 - Remove Anchor from URL. '.bc.ca'). const hostname = a.hostname. That's called destructuring assignment. I got close but inconsistent results. Note3: Working all good but the end is a mess haha Have you tried it using a .co.uk TLD? Templates let you quickly answer FAQs or store snippets for re-use. I was trying to just get the root domain without subdomains. Each of the JS solutions will fail for one of these test URLs: 'a.b.c.ac.il/', 'news.com.au/', 'youtube.com'. It just clips off www's and TLD's, with a little complication to handle non-matching strings cleanly. Hopefully that'll help you. This is what's wrong with development today. Unfortunately, I think the only way to improve on it is to use the list of all TLDs to find how much of the end of the domain is TLD. 5 days ago The most specific domain name in "www dot youtube dot com" is "www".

This doesn't work for some valid URL parameters e.g. @Davos, this particular solution doesn't touch domain-extracting regexp because OP wanted help with another problem, but yes, this could be fixed as well. Announcing the Stacks Editor Beta release! Asking for help, clarification, or responding to other answers. be paid a fee by the merchant. Since TLDs now include things with more than three-characters like .wang and .travel, here's a regex that satisfies these new TLDs: Strategy: starting at the end of the string, look for one or more characters that aren't periods or whitespace, followed by a single period, followed by one or more characters that aren't periods or whitespace. Write a function that, when given a URL as a string, returns only the domain name as a string. You can now choose to sort by Trending, which boosts votes that have happened recently, helping to surface more up-to-date answers. Quick & dirty ugly chain if you don't want to research regex: hostName is based on a quick reading of the spec and should cope with usernames and ports. Love JS, Python, CSS, Full Stack Developer at Onion Credit Technologies, Daily Challenge #6 - Grandma and her friends, Daily Challenge #7 - Factorial Decomposition, Daily Challenge #8 - Scrabble Word Calculator, Daily Challenge #14 - Square into Squares. Passionate about solving problems since 2012! Daily Challenge #36 - Let's go for a run! Is it against the law to sell Bitcoin at a flea market? For example if I have sites: Those last two I would like to exclude the freds and josh subdomain portion and extract only the true domain which would just be meatmarket.co.uk. Daily Challenge #286 - Reverse It Quickly! Sets with both additive and multiplicative gaps.

Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Daily Challenge #256 - How Many Are Smaller Than I? Laymen's description of "modals" to clients. The display of third-party trademarks and trade names on this site does not How do I include a JavaScript file in another JavaScript file? What does "use strict" do in JavaScript, and what is the reasoning behind it? Gamer. btw youtube.com/ashstudios. From there, we allow for a non-word boundary in front of that which may include dashes and periods. Daily Challenge #258 - Ranking Poker Hands, Daily Challenge #262 - No One Likes Spare Change, Daily Challenge #268 - Swapping Characters in Strings, Daily Challenge #271 - Simulate Population Growth, Daily Challenge #274 - Aerial Firefighting, Daily Challenge #276 - Unwanted Dollar Signs, Daily Challenge #278 - Find all non-consecutive numbers, Daily Challenge #279 - Playing with Sandpiles, Daily Challenge #282 - Car License Plate Calculator, Daily Challenge #283 - Simple Missing Sum. Actually the domain name is the whole thing - "twitter.com", "github.com", "youtube.com". Want to propose a challenge idea for a future post? Daily Challenge #220 - What Dominates Your Array? Connect and share knowledge within a single location that is structured and easy to search. With you every step of your journey. So it replaces the complete string 'test.something.else.com' with '$1' which is actually 'else.com'. Once unpublished, this post will become invisible to the public By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Installation phpMyAdmin 4.6.3 documentation, Safe storage of app secrets in development in ASP.NET Core, Adding decorated classes to the ASP.NET Core DI container using Scrutor, Xamarin.Forms Android project: BluetoothSocket.Connect throws Exception every time, Regular expression to validate an HTML hexadecimal color in jQuery, How to Convert a Map to JSON in JavaScript.