Convert json to html view

json = {"employees":[
    {"firstName":"John", "lastName":"Doe"},
    {"firstName":"Anna", "lastName":"Smith"},
    {"firstName":"Peter", "lastName":"Jones"}
]}

function syntaxHighlight(json) {
    if (typeof json != 'string') {
         json = JSON.stringify(json, undefined, 2);
    }
    json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
    return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
        var cls = 'number';
        if (/^"/.test(match)) {
            if (/:$/.test(match)) {
                cls = 'key';
            } else {
                cls = 'string';
            }
        } else if (/true|false/.test(match)) {
            cls = 'boolean';
        } else if (/null/.test(match)) {
            cls = 'null';
        }
        return '<span class="' + cls + '">' + match + '</span>';
    });
}

syntaxHighlight(json)

Output::

"{
  <span class="key">"employees":</span> [
    {
      <span class="key">"firstName":</span> <span class="string">"John"</span>,
      <span class="key">"lastName":</span> <span class="string">"Doe"</span>
    },
    {
      <span class="key">"firstName":</span> <span class="string">"Anna"</span>,
      <span class="key">"lastName":</span> <span class="string">"Smith"</span>
    },
    {
      <span class="key">"firstName":</span> <span class="string">"Peter"</span>,
      <span class="key">"lastName":</span> <span class="string">"Jones"</span>
    }
  ]
}"