Lodash.js – mapKeys() function
By Bartłomiej Bartel
A simple Lodash.js example of the mapKeys() function, we map the existing key names and get new key names.
<!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 = { 'grapes':20, 'oranges':15, 'limons':12 };
firstDiv.innerHTML = "Having the object with key value pairs:<br><br>";
firstDiv.innerHTML += JSON.stringify(firstValue);
var result = _.mapKeys(firstValue, function(value, key) {
return "new_"+key;
});
secondDiv.innerHTML = "...we map the existing key names and we get:<br><br>";
secondDiv.innerHTML += JSON.stringify(result);
</script>
</body>
</html>