Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

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JavaScript

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Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

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Behavior

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Editor Settings

Code Indentation

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HTML

              
                <div class="container">
  <h2>HTML 5 Local Storage Example</h2>  
<p><button class="btn-info" onclick="clickCounter()" type="button">Click me!</button></p>
<div id="result"></div>
<br>  
<p>Click the button to see the counter increase.</p>
<p>Close the browser tab (or window), and try again, and the counter will continue to count (is not reset).</p>
 
</div>
              
            
!

CSS

              
                
              
            
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JS

              
                if(localStorage.clickcount) {
    presentCode();
}
function popitup(url) {
  newwindow=window.open(url,'mySpy','height=200,width=150');
  if (window.focus) {newwindow.focus()}
  return false;
}

function clickCounter() {
  if (localStorage.clickcount) {
    localStorage.clickcount = Number(localStorage.clickcount)+1;
  } else {
    localStorage.clickcount = 1;
  }
  presentCode();
  popitup('https://google.com');
}

function presentCode() {
  document.getElementById("result").innerHTML = "You have clicked the button " + localStorage.clickcount + " time(s).";
}
              
            
!
999px

Console