I want to validate URLs of the following form:
function is_valid_url(url) {
return /^http(s)?:\/\/(www\.)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(\/.*)?$/.test(url);
}
1 and 2 are validated correctly. But 3 shows an invalid URL.
That's the correct regular expression for your use case:
function is_valid_url(url) {
return /^(http(s)?:\/\/)?(www\.)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(\/.*)?$/.test(url);
}
If "http://" is optional, you will have to put it in brackets and add a question mark.
Try this, It worked for me.
var url = $("#<%= txtUrl.ClientID %>").val();
var pattern = /^(http|https)?:\/\/[a-zA-Z0-9-\.]+\.[a-z]{2,4}/;
args.IsValid = pattern.test(url);
http://www.tricksofit.com/2013/12/regular-expression-with-jquery-validation#highlighter_290011
We need to validate n number of scenarios for URL validation. If your particular about your given pattern then above regex expression from other answer looks good. that is :
function is_valid_url(url)
{
return /^(http(s)?:\/\/)?(www\.)?[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(\/.*)?$/.test(url);
}
Or
If you want to take care of all the URL validation scenarios please refer In search of the perfect URL validation regex
