regex url
(https?://(?:www.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9].[^s]{2,}|www.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9].[^s]{2,}|https?://(?:www.|(?!www))[a-zA-Z0-9]+.[^s]{2,}|www.[a-zA-Z0-9]+.[^s]{2,})regex url
(https?://(?:www.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9].[^s]{2,}|www.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9].[^s]{2,}|https?://(?:www.|(?!www))[a-zA-Z0-9]+.[^s]{2,}|www.[a-zA-Z0-9]+.[^s]{2,})regex pattern that checks url
https?://(www.)?[-a-zA-Z0-9@:%._+~#=]{1,256}.[a-zA-Z0-9()]{1,6}b([-a-zA-Z0-9()@:%_+.~#?&//=]*)regex expression for url validation
const regex = /^((ftp|http|https)://)?(www.)?(?!.*(ftp|http|https|www.))[a-zA-Z0-9_-]+(.[a-zA-Z]+)+((/)[w#]+)*(/w+?[a-zA-Z0-9_]+=w+(&[a-zA-Z0-9_]+=w+)*)?$/gm;
const str = `http://www.sample.com
https://www.sample.com
http://www.sample.com/xyz
www.sample.com
www.sample.com/xyz/#/xyz
sample.com
www.sample.com
mofiz.com
kolim.com
www.murikhao.www.sample.com
http://murihao.www.sample.com
http://www.sample.com/xyz?abc=dkd&p=q&c=2
www.sample.gov.bd
www.sample.com.en
www.sample.vu
`;
let m;
while ((m = regex.exec(str)) !== null) {
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
console.log("matched :"+m[0]);
}Copyright © 2021 Codeinu
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