url validator javascript
function validURL(str) {
var pattern = new RegExp('^(https?:\/\/)?'+ // protocol
'((([a-z\d]([a-z\d-]*[a-z\d])*)\.)+[a-z]{2,}|'+ // domain name
'((\d{1,3}\.){3}\d{1,3}))'+ // OR ip (v4) address
'(\:\d+)?(\/[-a-z\d%_.~+]*)*'+ // port and path
'(\?[;&a-z\d%_.~+=-]*)?'+ // query string
'(\#[-a-z\d_]*)?$','i'); // fragment locator
return !!pattern.test(str);
}how to read valid url in javascript new URL()
function isValidHttpUrl(string) {
let url;
try {
url = new URL(string);
} catch (_) {
return false;
}
return url.protocol === "http:" || url.protocol === "https:";
}Copyright © 2021 Codeinu
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