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How to validate URL address in JavaScript?
To validate URL address in JavaScript, use “regex” as in the following code. It returns “true” for correct URL address, else “false”
Example
<!DOCTYPE html> <html> <body> <script> var myURL; function validURL(myURL) { 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}))'+ // ip (v4) address '(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ //port '(\\?[;&a-z\\d%_.~+=-]*)?'+ // query string '(\\#[-a-z\\d_]*)?$','i'); return pattern.test(myURL); } document.write(validURL("http://qries.com")); </script> </body> </html>
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