What's the right way to decode a string that has special HTML entities in it? [duplicate]

Answer 1

jQuery will encode and decode for you.

function htmlDecode(value) {
  return $("").html(value).text();
}

function htmlEncode(value) {
  return $('<textarea/>').text(value).html();
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code><script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
   $("#encoded")
  .text(htmlEncode("<img src onerror='alert(0)'>"));
   $("#decoded")
  .text(htmlDecode("<img src onerror='alert(0)'>"));
});
</script>

<span>htmlEncode() result:</span><br/>
<div id="encoded"></div>
<br/>
<span>htmlDecode() result:</span><br/>
<div id="decoded"></div></code></pre>
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