Lodash.js – once() function

A simple Lodash.js example of the once() function, which invokes a function only once. If you try to invoke it more times you will get only the first result. 
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
    <meta name="description" content="Tizen example"/>
    <title>Tizen lodash.js example</title>
    <script src="js/lodash.min.js"></script>
</head>
<body>
<div id="first">
</div>
<br>
<div id="second">
</div>

<script>

    var firstDiv = document.getElementById('first');
    var secondDiv = document.getElementById('second');

    var firstValue = function() {

        secondDiv.innerHTML += "START THE APP!!!<br>";

    }

        firstDiv.innerHTML = "Having a function which will be run only once by the lodash once functionality:<br><br>";
        firstDiv.innerHTML += firstValue;

   var fireUp = _.once(firstValue);

    fireUp();
    fireUp();
    fireUp();
    fireUp();

</script>
</body>

</html>
List

Responses

0 Replies