MAN/MinimizeJavascript.html at master · kostermm/MAN · GitHub

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<!DOCTYPE html>
<html lang="nl">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <title>Minimize js files</title>

    <script src="http://code.jquery.com/jquery-git.js"></script>


    <style>
      textarea {
        height: 250px;
        width: 48%;
      }
    </style>


  </head>
  <body><textarea id="input" placeholder="Paste GeoJSON here">
  </textarea>
<textarea id="output"></textarea>
<button id="run">Optimize</button>
<p style="margin-top:5px">Click "Optimize" to strip whitespace from your GeoJSON, and reduce the number of decimals in coordinates.</p>

<script>
      // Set to number of decimals to keep
      var keepDecimals = 4;


      $('#run').click(function () {
        console.log('starting');
        $('#output').text($('#input').val().replace(/\s/g, '').replace(/(\[-?\d+)\.(\d+)(,-?\d+)\.(\d+)(\])/g, function (s1, s2, s3, s4, s5, s6) {
            return keepDecimals ? s2 + '.' + s3.slice(0, keepDecimals) + s4 + '.' + s5.slice(0, keepDecimals) + s6 : s2 + s4 + s6;
        }));

        console.log('finished');
      });

    </script>