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showing results for - "javascript determine if string is valid url"
Syrine
17 Apr 2017
1function isValidURL(string) {
2  var res = string.match(/(http(s)?:\/\/.)?(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)/g);
3  return (res !== null)
4};
5
6var testCase1 = "http://en.wikipedia.org/wiki/Procter_&_Gamble";
7
8alert(isValidURL(testCase1)); 
9
source
Gauthier
31 Jun 2016
1function isValidHttpUrl(string) {
2  let url;
3  
4  try {
5    url = new URL(string);
6  } catch (_) {
7    return false;  
8  }
9
10  return url.protocol === "http:" || url.protocol === "https:";
11}
source
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