.map() Function With ES6

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by vsasikalabe dot icon Updated: Mar 17, 2023

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You can see the syntax. The map() function loops through an array using a callback function (or the mapping function). Each element in the array is sent to the callback function, which returns a new element. The map() creates a new array using the returned elements. 


array.map(callback[, thisObject]);   


callback − It produces an element for the new array from an element of the current one. 

thisObject − when executing the callback, this Object is used. 

The map () executes as an alternative to our for loops. It reduces the length of your code and requires a little practice.  

Benefits of using array map(): 

  • You don't have to define any index. Since you operate with the array element, you don't have to define any index. 
  • No need to create a new array and push elements into it. 
  • Don't have to create any loop. 
  • We have to put in a return statement. Otherwise, we will get an array of undefined. 
  • You feel free to assign to a new variable because the map returns a finished array  
  • It does not access the function for empty elements. 
  • It does not change the original array. 

Here is an example of how to do the .map() Function with ES6: 

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. Download and Install VS Code on your Computer.
  2. Open the VS Code and install Javascript ES6 Code Snippet and Code Runner from Extensions.
  3. Open the new file and save it as example.js (functions.js)
  4. Copy the code using the "Copy" button above, and paste it into your Javascript file.
  5. Run the code using (ctr+alt+N) Run button.

I hope you found this useful. I have added version information in the following sections.

I found this code snippet by searching for ' .map() Function With ES6' 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 in VS Code 1.73.1 version.
  2. JavaScript (ES6) code snippets v1.8.0
  3. Code Runner v0.12.0

Using this solution, we are able to do .map() Function With ES6 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 do .map() Function With ES6.


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