mask email address javascript
Posted on October 8th, 2020Since this script completely relies upon JavaScript, users without JavaScript or those who've disabled it will not see anything. Next, we'll use document.write() to insert the link, combining strings with the variable we just stored to build a compact and protected email link. A few years ago I had the idea to break and then reassemble my email address with JavaScript to help prevent spam. The code to write an email address into a web page looks like this: The parentheses contain the two halves of my email address.
// protected email script by Joe Maller // JavaScripts available at http://www.joemaller.com // you are free to use and distribute this script // but please credit me and/or link to my site emailE=('joe@' + 'joemaller.com') //change your email on this line document.write('' + emailE + ''), CAUCE, The Coalition Against Unsolicited Commercial Email. Spam-lists are generated by Spam-Crawlers and Spam-Bots. Write a JavaScript function to convert a string in abbreviated form. Include jQuery library and the jQuery mail mask plugin on your web page. For the impatient or those who don't care how this works, jump ahead to the final script. * The tag is a structral equivalent to the tag that communicates meaning as well as style. However, since the JavaScript is visually rendered on page load, the visual and functional attributes of what is displayed are that of a normal mailto link from the viewpoint of the reader. These computers only purpose is to constantly comb the web in search of email addresses to add to their lists. Executing JavaScripts would be a waste of processor cycles, but that efficiency will help to protect our email. It is, effectively, obfuscated to the 'bot and clear to the human. What is the conscientious web master to do?!? Then last year, my friend Dale Sorenson told me of a similar solution he had written, he uses a picture of his email address and then JavaScript to build the link. The code to write an email address into a web page looks like this: The parentheses contain the two halves of my email address. From a design point of view, this will completely blend in with whatever other text you have on the page. Their nefarious 'bots are constantly spidering the web, looking for injudiciously displayed email addresses. The document.write() function can insert a whole link too. The text address this script produces will appear to be plain text. "nosuch"), this function will first reconstruct the email address into the standard format, and assign it to a variable called "document.mymail". It also requires you have have a the ROT13 encoded version of the email address – which you can get from websites like rot13.comor using server side functions like str_rot13() in PHP. Well, the key is to understand the limitations of the nefarious 'bots. The W3C is the international organization responsible for web standards, here is the definition of a legal Script tag. "net"), a domain (e.g. Previous: Write a JavaScript function to convert a string in abbreviated form. JavaScript's document.write() command is incredibly powerful. What is the difficulty level of this exercise? These strings are assembled by the document.write () function and output into the page. Caveat Emptor. Test Data: First, we'll define a reusable variable emailE to store the email address in the same string format used earlier. Check his contact page to see his anti-spam solution. Split your email address into multiple parts and create an array in JavaScript out of these parts. The two "document.write" calls then will output the eMail address sandwiched within an HTML "mailto" string. How to use it: 1. I wrote a small script to generate personalized source code. These are sites with similar JavaScript solutions: It's not that much more typing than a normal link, and I'd gladly trade a few extra keystrokes now to avoid a ton of junk email later.
Readers will never know it was generated by a script. Readers are free to change the font or size to their preference, and the address could be read aloud by a machine for the visually impaired.
These strings are assembled by the document.write() function and output into the page. Type an email address to generate a personalized JavaScript email protection script: Email: Include
Next: rite a JavaScript function to parameterize a string. If this was helpful or interesting to you, please link to this site so other people can share this information too. I use this trick everywhere you see an email address on this page, in fact every time you see an email address on my site a little script put it there. Variables with the const and let keyword are block-scoped.
Send me a note and let me know what you thought of this page. I do not currently include this code on any of my pages.
Doesn't fighting spam make you feel good inside? "[email protected]". Using an extension, when you encounter a field asking for an email ID, you will get the option to mask the email address. For example, document.write(), can build my email address into regular HTML text like this: document.write('joe@' + 'joemaller.com') Even though you can see the email address, it was rendered by your browser when the page was displayed and is therefore safe from Spam-Crawlers. In this case, the curly brackets of the if/else statements. See the Pen JavaScript Hide email addresses to protect from unauthorized user - string-ex-6 by w3resource (@w3resource) on CodePen. This tutorial shows how to build a small, portable JavaScript to hide an email address to help reduce junk mail. If we needed to change the address, only one line needs to change. By using an image of your email address, or a message about needing JavaScript for email, your visitors will always see something. "ziemecki"), and an account (e.g. I used to keep the text of this link in a little file on my desktop so I can quickly and easily access it whenever I need to. I built something, it worked and I forgot about it. However, since the JavaScript is visually rendered on page load, the visual and functional attributes of what is displayed are that of a normal mailto link from the viewpoint of the reader. rite a JavaScript function to parameterize a string. Email address protected by JavaScript.
Your web site might be contributing in how much junk mail you receive, especially if you include an email address on your pages.
Scala Programming Exercises, Practice, Solution. Thankfully they are in such a rush to keep up with the massive amount of web content that they ignore everything but the plain text of each site. See the Pen JavaScript Hide email addresses to protect from unauthorized user - string-ex-6 by w3resource (@w3resource) on CodePen. Consider this snippet: So, given a top level domain (e.g. You cannot reference a variable outside of the block it's declared in, a ReferenceError gets thrown. Use a ROT translator your email address’s secret code. Next join these parts in the correct order and use the .innerHTML property to add the email address … If you choose that, you get to enter an email mask … If you wanted to reverse this, since you are REALLY paranoid, you can: Note that the second line was reversed to accommodate the change. Improve this sample solution and post your code through Disqus. There are two big disadvantages here – users that do not have JavaScript enabled will not see the real email address and the email address with not be clickable. Encrypting the email address using ROT13 Use JavaScript to build a ROT13 substitution cipher that hides the email address. Mail Mask is a jQuery plugin that replaces the default "@" sign of your Email addresses with a custom character to protect them from spam bots. I don't have any proof that it works, but the amount of junk mail I get has gone down since I started using this script on my site. Spammers are evil people with crafty tools. More than 98% of my visitors have JavaScript turned on and of the remaining 2%, most all of them have browsers capable of JavaScript and have it disabled by choice. The script will work without it, but I like tory and be as standards-compliant as I can. You see, they can only parse the strings that are actually written on your web page. Using the emailE variable to build and store the email address also allows us to shorten the final script and make it highly portable. Since a 'bot can't see how the browser has rendered the JavaScript, it will ignore the address. Use JavaScript To Mask Your Email Address Finally, we get to the best option. JavaScript Hide email addresses to protect from unauthorized user - string-ex-6.
I don't believe this is necessary, but I'm including it by request. Variables can have information added to their existing contents, and that new content can even include the existing variable.
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