Lodash.js – lastIndexOf() function
By Bartłomiej Bartel
A simple Lodash.js example of the lastIndexOf() function, we will return the last index of the element from its last occurence in the collection.
<!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 = [1,0,1,2,1,2,1,1];
firstDiv.innerHTML = "Having the array of values, we will find the index of the last occurence of the value 2 in the provided array (iterating from right to left)...";
var result = _.lastIndexOf(firstValue, 2);
secondDiv.innerHTML = "...and we will get the index of: " + result;
</script>
</body>
</html>