I am dealing with the following collection of strings
http://example.com
https://example.com
http://www.example.com
Is there a way to remove the http:// or https:// prefixes from these URLs?
I am dealing with the following collection of strings
http://example.com
https://example.com
http://www.example.com
Is there a way to remove the http:// or https:// prefixes from these URLs?
Here's a suggestion for you:
const website = "https://example.com";
const websiteNoProtocol = website.replace(/^https?\:\/\//i, "");
One way to utilize the URL object is by following this method:
const urlWithoutProtocol = new URL(url).host;An alternative method is to utilize the URL() constructor, which simplifies the parsing of URL strings and eliminates the need for complex regex patterns:
let u = new URL('https://www.facebook.com/companypage/');
URL {
hash: ""
host: "www.facebook.com"
hostname: "www.facebook.com"
href: "https://www.facebook.com/companypage/"
origin: "https://www.facebook.com"
password: ""
pathname: "/companypage/"
port: ""
protocol: "https:"
search: ""
searchParams: URLSearchParams {}
username: ""
}
u.host // www.facebook.com
u.hostname // www.facebook.com
While URL() does remove the protocol, it retains the 'www' subdomain. If you also wish to eliminate the subdomain, you can achieve this by using the .replace() function:
u.host.replace(/^www./, '') // www.facebook.com => facebook.com
let link="https://website.com";
link=/^http(s)?:\/\/(.+)$/i.exec(link);
link=link[2];
If you want to parse links without the http/https, you can use this:
let link="https://website.com";
link=/^(http(s)?:\/\/)?(.+)$/i.exec(link);
link=link[3];
let link = "https://website.com";
link = link.substr( link.indexOf(':') + 3 );
Instead of using .substr(), you can also opt for .slice() or .substring(). All these methods will yield the same output in this scenario.
link = link.slice( link.indexOf(':') + 3 );
link = link.substring( link.indexOf(':') + 3 );
UPDATE: It seems that the question requirements have been altered based on a comment under another response.
If there might not be a http:// in the string, then follow these steps:
let link = "website.com";
let index = link.indexOf('://');
if( index > -1 )
link = link.substr( index + 3 );
This response builds upon previous answers, utilizing http://, https://, or // which are commonly used.
I am grateful for the insights shared in the earlier responses that guided me to this solution!
const urls = [ "http://example.com", "https://example.com", "//example.com" ]
// The regular expression below indicates: replace `//` or replace `//` along with any additional content
const resolveHostNames = urls.map(url => url.replace(/\/\/|.+\/\//, ''))
console.log(resolveHostNames);
Feel free to access a link to a codepen for reference.
Remove the protocol section from a URL:
const website = "https://example.com";
const urlNoProtocol = website.split('/').slice(2).join('/');
This code snippet is designed to work with various protocols such as ftp, http, gopher, nntp, telnet, wais, file, and prospero, as outlined in RFC 1738. However, it does not support protocols like mailto and news that do not contain '//.'
It is important to understand that the use of inherited protocol // in real web pages is a common practice as mentioned by Paul Irish.
For this reason, I recommend using a regular expression that accounts for this scenario:
/^\/\/|^https?:\/\//
(you can optimize it further)
A more effective approach,
url.replace(/(^(\w+:)?\/\//, '')
If there aren't any double slashes except for the protocol, here's a way to achieve the desired result:
let link = "https://example.com";
let withoutProtocol = link.split('//')[1];
To utilize the HTMLHyperlinkElementUtils from DOM, you can implement the following function:
function excludeProtocol(link) {
const anchor = document.createElement('a');
anchor.href = link;
// If the original URL is relative, the new href will be absolute.
return anchor.href.replace(anchor.protocol + '//', '');
}
excludeProtocol('https://testsite.com/hyperlink');
// 'testsite.com/hyperlink'
excludeProtocol('error://broken_link/a');
// 'broken_link/a'
Refer to HTMLHyperlinkElementUtils on MDN:
anchor.hostname, testsite.com
anchor.host, testsite.com:3000
anchor.pathname, /hyperlink/page.html
anchor.search, ?x=1&y=2
anchor.hash, #bar
anchor.username, anchor.password, anchor.port, and more.
When you have a simple task like extracting the protocol from a URL, using regex can be unnecessary because there's a convenient built-in URL interface that can do it in just 2 lines of code:
let url = "https://stackoverflow.com/questions/3999764/taking-off-the-http-or-https-off-a-javascript-string";
let a = new URL(url);
let withoutProtocol = a.host+a.pathname;
console.log(`Without protocol: ${withoutProtocol}`);
console.log(`With protocol: ${url}`);The split function in Javascript comes to the rescue once again! Incredible!!!
var link = "https://test.com";
link = link.split("://")[1]; // for https websites use link..split("://")[0];
console.log(link);
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