Lodash.js – findIndex() function
By Bartłomiej Bartel
A simple Lodash.js example of the findIndex() function, we will return the index of the element we are seeking for.
<!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 = [{'quantity':152, 'weight':42},
{'quantity':122, 'weight':32},
{'quantity':15, 'weight':2},
{'quantity':52, 'weight':25}];
firstDiv.innerHTML = "Having the array of objects, we will find the index of the object {'quantity':15, 'weight':2} in the provided array...";
var result = _.findIndex(firstValue, {'quantity':15, 'weight':2});
secondDiv.innerHTML = "...and we will get: " + result;
</script>
</body>
</html>