const validUrl = require('valid-url');
  
if (validUrl.isUri(url)){
    console.log('Looks like an URI');
} else {
    console.log('Not a URI');
}

npm install valid-url

/*
 * @Function isUri(value)
 *
 * @Synopsis  is the value a well-formed uri?
 * @Description  
        Returns the untainted URI if the test value appears to be well-formed.  Note that
        you may really want one of the more practical methods like is_http_uri or is_https_uri,
        since the URI standard (RFC 3986) allows a lot of things you probably don't want.
 * @Arguments 
 *   value  The potential URI to test.
 *
 * @Returns The untainted RFC 3986 URI on success, undefined on failure.
 * @Notes 
        This function does not make any attempt to check whether the URI is accessible
        or 'makes sense' in any meaningful way.  It just checks that it is formatted
        correctly.
 *
 */


/*
 * @Function isHttpUri(value)
 * @Synopsis   is the value a well-formed HTTP uri?
 * @Description  
        Specialized version of isUri() that only likes http:// urls.  As a result, it can
        also do a much more thorough job validating.  Also, unlike isUri() it is more
        concerned with only allowing real-world URIs through.  Things like relative
        hostnames are allowed by the standards, but probably aren't wise.  Conversely,
        null paths aren't allowed per RFC 2616 (should be '/' instead), but are allowed
        by this function.
        
        This function only works for fully-qualified URIs.  /bob.html won't work.  
        See RFC 3986 for the appropriate method to turn a relative URI into an absolute 
        one given its context.
        
        Returns the untainted URI if the test value appears to be well-formed.
        
        Note that you probably want to either call this in combo with is_https_uri(). i.e.
        
        if(isHttpUri(uri) || isHttpsUri(uri)) console.log('Good');
        
        or use the convenience method isWebUri which is equivalent.

 * @Arguments 
 *   value  The potential URI to test.
 *
 * @Returns The untainted RFC 3986 URI on success, undefined on failure.
 * @Notes 
        This function does not make any attempt to check whether the URI is accessible
        or 'makes sense' in any meaningful way.  It just checks that it is formatted
        correctly.
 */
 


/*
 * @Function isHttpsUri(value)
 * @Synopsis   is the value a well-formed HTTPS uri?
 * @Description  
        See is_http_uri() for details.  This version only likes the https URI scheme.
        Otherwise it's identical to is_http_uri()
 * @Arguments 
 *   value  The potential URI to test.
 *
 * @Returns The untainted RFC 3986 URI on success, undefined on failure.
 * @Notes 
        This function does not make any attempt to check whether the URI is accessible
        or 'makes sense' in any meaningful way.  It just checks that it is formatted
        correctly.
 */
 
 
 /*
 * @Function isWebUri(value)
 * @Synopsis   is the value a well-formed HTTP or HTTPS uri?
 * @Description  
        This is just a convenience method that combines isHttpUri and isHttpsUri
        to accept most common real-world URLs.
 * @Arguments 
 *   value  The potential URI to test.
 *
 * @Returns The untainted RFC 3986 URI on success, undefined on failure.
 * @Notes 
        This function does not make any attempt to check whether the URI is accessible
        or 'makes sense' in any meaningful way.  It just checks that it is formatted
        correctly.
 */