I tried to validate url with or without http No matter what i did the function return false. I checked my regex string in this site: http://regexr.com/ And its seen as i expect.
function isUrlValid(userInput) {
var regexQuery = "/(http(s)?://.)?(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)/";
var url = new RegExp(regexQuery,"g");
if (url.test(userInput)) {
alert('Great, you entered an E-Mail-address');
return true;
}
return false;
}
I fix the problem by change the .test to .match and leave the regex as is.
You can use the URLConstructor to check if a string is a valid URL. URLConstructor ( new URL(url) ) returns a newly created URL object defined by the URL parameters. A JavaScript TypeError exception is thrown if the given URL is not valid.
To check whether the string entered is a valid URL or not we use the validators module in Python. When we pass the string to the method url() present in the module it returns true(if the string is URL) and ValidationFailure(func=url, …) if URL is invalid.
I change the function to Match + make a change here with the slashes and its work: (http(s)?://.)
The fixed function:
function isUrlValid(userInput) {
var res = userInput.match(/(http(s)?:\/\/.)?(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)/g);
if(res == null)
return false;
else
return true;
}
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