<!DOCTYPE html>
<html>
<head>
<title>Lodash Tutorial</title>
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.11/lodash.min.js"></script>
<script type="text/javascript">
var users = [
{ id: 1, firstName: "John", lastName: "Doe", age: 28, gender: "male" },
{ id : 2, firstName: "Jane", lastName: "Doe", age: 5, gender: "female" },
{ id : 3, firstName: "Jim", lastName: "Carrey", age: 54, gender: "male" },
{ id : 4, firstName: "Kate", lastName: "Winslet", age: 40, gender: "female" }
];
users = _.keyBy(users, "id");
var user = users[1];
console.log(user);
</script>
</head>
<body></body>
</html>
{id: 1, firstName: "John", lastName: "Doe", age: 28, gender: "male"}