Underscore.js _.result() Function

Last Updated : 15 Oct, 2020

Underscore.js is a JavaScript library that provides a lot of useful functions that helps in the programming in a big way like the map, filter, invoke etc even without using any built-in objects.

The _.result() function is an inbuilt function in Underscore.js library of JavaScript. Here, if the stated value of the named property is a function then you should call it with the object as a context else return it. Moreover, if a default value is stated and the property parameter is not given or is not defined then the default value will be returned.

Note: If the stated defaultValue is a function then its result will be returned as output.

Syntax:

_.result(object, property, [defaultValue])

Parameters: It accepts three parameters which are specified below:

object: It is the stated object.
property: It is the property stated.
[defaultValue]: It is the stated default value.

Return Value: This method returns the value of the named property.

Example 1:

JavaScript

<!DOCTYPE html>
<html>

<head>
    <script src=
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js">
    </script>
</head>

<body>
    <script>
        var obj = { 
            CSportal: 'GeeksforGeeks', 
            gfg: function () { return 'Geeks!'; } 
        };

        // Calling result method with its parameters
        console.log(_.result(obj, 'CSportal'));
    </script>
</body>

</html>

Output:

GeeksforGeeks

Example 2:

JavaScript

<!DOCTYPE html>
<html>

<head>
    <script src=
"https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js">
    </script>
</head>

<body>
    <script>
        var obj = [1, 2, 4, 5];

        // Calling result method 
        // with its parameters
        console.log(_.result(obj, 9, 7));
        console.log(_.result(obj, 5));
    </script>
</body>

</html>