Exploring new features of ECMAScript 2023

 Exploring New Features of ECMAScript 2023

As  javascript continuously to evolve , we as a javascript developers eagerly would like to explore and use in our projects to increase the productivity in writing the code and achieving efficiency. So, let's explore the ECMAScript 2023 Javascript features.

1) .with()

Earlier when we want to update some changes , the original array is altered and we get to see some side effects due to the same array changed . But .with() method can return the duplicate array with the changes. 

In this example , you can see the old way of updating the array and with the use of new feature the array can be easily update without altering the original array.
 

2) .toSpliced()

This method in javascript is used to pull out the specific element and with the number of number of element to pull out is mentioned in the parameters . Earlier , with the splice() 
method the array is altered with the desired result but can cause some side effects.

So, ECMAScript came up with the new method .toSpliced() which function like splice , but it updates in the duplicate returned array and not altered the original array.

You can look at the the below example , where I have specified the old way of splice and new method of splice.



3) .toReversed()

This method in javascript is used to reverse the array and not altered the original array.
Here, in this example we have an array of month in the chronological order but we want to reverse the array without altering the months array.

We will do this reverse with the help of new method .toReversed() method in the new ECMAScript 2023 .


This are some of the new features in javascript of ECMAScript 2023 which makes the developer efficient with the code and one should use them in their daily life to increase productivity.

Thank you for reading :)


Comments

Post a Comment

Popular posts from this blog

Learn React Router v6 ( Part - 2)

Image
  Introduction In this section of react-router learning we can explore how we can read the data from the backend apis and send http request with the react router with the different functionalities  .  Data fetching and sending data back to the server is the most important process which react router make simpler and easier to understand providing error handling , fetching data , sending data , loader etc. Let's explore some advance concepts of react router makes react developers more simpler. 1) Loader  Loader loads the data from the backend apis and we can use the loaded data in our react web applications. We cannot send http requests back to the server instead get the data from the server and just use them to display some lists or information in the components We have two steps to implement loader into the system . First step :- We need to define the loader property in the route definitions object to load the data . This takes the function as a parameter where ...
Read more

Why use Typescript ?

Introduction When I was using JavaScript , there is an inside joke in our team if you don't know coding then you need to use typescript . As Typescript provides you the types that make you write better code with less mistakes before compilation.  It's all good using typescript but seriously why even barely use typescript for just types , if you know what you are coding , and know all you variables because you give them good naming that make you help understand the code of which is used for.   Obviously , if you write exactly you wanted and you are a solo developer without any team or any interference, why even bare learning types ? Why even bare learning typescript ? Correct question and on point ! But do you know  when you write code on Friday with the strategy you made and when you come again on Monday  , writing the code with the exact same strategy as Friday is not possible and  you can make mistakes . You know , time are bad sometimes and you can't rem...
Read more

What is Single Page Application Routing ?

Image
  Single Page Application Routing? Earlier , we used to serve different web pages for the URL whenever the user redirects to the different path and whole application reloads where the sending http request to backend makes the application slower . So , in react there is a package name React Router which makes the multi page application feel to the single page application and the navigation concept in react seems feasible . Single Page Application (SPA) where the whole application load at once and whenever user visits some path, it will fetch the data from the server for the particular component and make that page visible to the user which feels like multi page routing. React Router package manager installed by npm  , and very important concept in react for the navigation  without the react router we cannot perform navigation in the single page application . There are three steps to implement the react router and navigate through the different components after installi...
Read more