html5/mini.html at master · Yuman/html5 · GitHub

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<!doctype html>

<html>

<head>
  <!--
https://css-tricks.com/snippets/javascript/get-url-and-url-parts-in-javascript/
  -->
    <script>
      let chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';

      const createToken = function(){
         let tok = '';
         for (let i = 0; i < 7; i++){
           tok += chars[Math.floor(Math.random()*62)]
         }
         if(localStorage.getItem(tok)){
           tok = createToken();
         }
         return tok;
      }


      debugger
      let search = window.location.search
      let param = search.split('?')[1]
      console.log(param)
      let tok = '';
      if(localStorage.getItem(param)){
        tok = localStorage.getItem(param);
      }
      else{
        tok = createToken();
        localStorage.setItem(tok, param);
        localStorage.setItem(param, tok);
      }
      let miniTxt = window.location.protocol + "//" + window.location.host + "/" + window.location.pathname + '?' + tok;
    </script>

</head>

<body>
    <h1 style="text-align: center">Mini shortens your URLs.</h1>
    <p> Provide the long URL as a parameter, like ?longURL

    <div id='mini'></div>

    <script>
      mini.innerText = miniTxt;
    </script>


</body>

</html>