JavaScript: Validate whether a given value is object or not

Last update on March 06 2025 11:07:02 (UTC/GMT +8 hours)

JavaScript validation: Exercise-6 with Solution

Validate Object

Write a JavaScript function to validate whether a given value is an object or not.

Sample Solution: -

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function to validate whether a given value is object or not.</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function is_object(value)
        {
        var datatype = typeof value;
        return datatype === 'function' || datatype === 'object' && !!value;
       }

console.log(is_object({name: 'Robert'}));

console.log(is_object('bar'));

console.log(is_object(72));

Sample Output:

true
false
false

Flowchart:

Live Demo:

See the Pen javascript-validation-exercise-6 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

Write a JavaScript function that checks if a given value is an object using typeof and ensures it is not null.
Write a JavaScript function that distinguishes between plain objects and other types (like arrays or functions) using Object.prototype.toString.
Write a JavaScript function that validates whether an input is a non-null object and returns a boolean accordingly.
Write a JavaScript function that accepts multiple inputs and filters out those that are objects, excluding arrays.

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