Using Object as Function in JavaScript

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by Abdul Rawoof A R dot icon Updated: Mar 2, 2023

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Functions are first-class objects in JavaScript because they can have the method and property of the function just like any other object. What distinguishes them from other objects is that functions can be called in JavaScript. In brief, they are called Function objects. 

A predefined JavaScript method is a call() method that invokes or calls a method with an owner object as an argument/parameter. An object can use a method belonging to another object with a call() method. To create an object for a function in JavaScript, another way to create an object in JavaScriptuse assign() method, which takes one or more source objects as input and copies all their enumerable properties to the target object. Then we can pass any number of objects to an object.assign() as a parameter. We can use the object as a function argument in JavaScript. To pass an object as an argument, we must write the object name as the argument when calling the function, the same way we do it for other variables. To call an object in a function, append the method name to an object connection with an intervening '.' simply, and it provides any arguments to the method within enclosing parentheses. Use empty parentheses if the method does not require any arguments. 

Here is an example of how to use an object as a function in JavaScript: 

Fig : Preview of the output that you will get on running this code from your IDE.



Follow the steps carefully to get the output easily.

  1. Install JavaScript ES6 code snippet and Code Runner from Extension on your IDE(We use Visual Studio Code).
  2. Copy the snippet using the 'copy' and create one new file filename.js(eg.test.js) then paste the code in that JavaScript file.
  3. Save the file and run the file using run button to generate the output.

I hope you found this useful.

I found this code snippet by searching for 'how to use object as function in javascript' in kandi. You can try any such use case!

Environment Tested

I tested this solution in the following versions. Be mindful of changes when working with other versions.

  1. The solution is created and tested in Visual Studio Code 1.74.1.
  2. JavaScript ES6 Code Snippet version v1.8.0.
  3. Code Runner version v0.11.8.

Using this solution, we are able to use object as function in javascript with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to use object as function in javascript.


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