How to detect whether a string is in URL format using javascript?

Question

I think the question title seems to explain eveything. I want to detect whether a string is in URL format or not using javascript.

Any help appreciated.

Answer 1

Try this code. This expression is more complete and takes into account IP address:

function checkUrl(s) {
     var regexp = /^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$/
     return regexp.test(s); }