mark.js example with pure JavaScript

This fiddle demonstrates how to use julmot/mark.js with pure JavaScript

by Roman Joseph Rimorin

HTML

<script src="https://code.jquery.com/jquery-latest.min.js"></script>
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootswatch/3.3.6/superhero/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/mark.js/8.6.0/mark.min.js"></script>
<h2><a href="https://markjs.io/" target="_blank">mark.js</a> example with pure JavaScript</h2>

<div class="panel panel-default">
  <div class="panel-heading">Search</div>
  <div class="panel-body">
    <div class="search row">
      <div class="col-xs-6">
        <span>Type in a keyword:</span>
        <input type="text" name="keyword" class="form-control input-sm" placeholder="Lorem ipsum...">
      </div>
      <div class="col-xs-6">
        <span>Search options:</span>
        <input type="checkbox" name="opt[]" value="separateWordSearch" checked> separate word search
        <br>
        <input type="checkbox" name="opt[]" value="diacritics" checked> diacritics
        <br>
        <input type="checkbox" name="opt[]" value="debug"> debug
        <br>
        <span>There are a lot more <a target="_blank" href="https://markjs.io/configurator.html">options</a>!</span>
      </div>
    </div>
  </div>
</div>


<div class="panel panel-default">
  <div class="panel-body context">
    <p>
      Lorem ipsum dolor sit āmet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, nò sea takimata
      sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea
      rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur...

CSS

body {
  margin: 15px;
}

div.search span,
div.search input[name="keyword"] {
  display: block;
}

div.search input[name="keyword"] {
  margin-top: 4px;
}

div.panel {
  margin-bottom: 15px;
}

div.panel .panel-body p:last-child {
  margin-bottom: 0;
}

mark {
  padding: 0;
}

JavaScript

// Create an instance of mark.js and pass an argument containing
// the DOM object of the context (where to search for matches)
var markInstance = new Mark(document.querySelector(".context"));
// Cache DOM elements
var keywordInput = document.querySelector("input[name='keyword']");
var optionInputs = document.querySelectorAll("input[name='opt[]']");

function performMark() {
 
  // Read the keyword
  var keyword = keywordInput.value;

  // Determine selected options
  var options = {};
  [].forEach.call(optionInputs, function(opt) {
    options[opt.value] = opt.checked;
  });

  // Remove previous marked elements and mark
  // the new keyword inside the context
  markInstance.unmark({
  	done: function(){
    	markInstance.mark(keyword, options);
    }
  });
};

// Listen to input and option changes
keywordInput.addEventListener("input", performMark);
for (var i = 0; i < optionInputs.length; i++) {
  optionInputs[i].addEventListener("change", performMark);
}