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What's New in ES2019?

What’s New in ES2019?

ES2019 or ES10 is the 2019 version of JavaScript. After the major 2015 update, JavaScript has been evolving every year. Developers get a small set of useful features, that helps us balance between innovation and stability.

You can also follow the evolution of JavaScript in this blog, because the first article was published back in 2015. It is now time that we examine the ES2019 updates from a…

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#computer science #ES6 #Functional Programming #Javascript #JSON

Exercise: Reversing a string in JavaScript

In this article, you will find different ways to reverse a string. Attempt to solve this exercise alone, and run the code in the below terminal.

Even if your solution is successful, I suggest reading all the solutions.

Exercise

Exercise: Write a reverse function that reverses its string argument.

const text = 'ES6 in Practice'; const reverse = str => { // write your solution…

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#Algorithms #ES6 #Javascript

React Context API

Back in 2015, I was developing applications using Backbone and Marionette, when a young developer approached me to tell me something exciting. “Check out React”, he said. I have heard this before with AngularJs, with KnockoutJs, and during that time, every second developer was developing a framework anyway.

As a team lead, I was still not fully convinced about the need to switch to React, but I…

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#Javascript #React

Analyzing Requirements as a Tech Lead

In the last few months, I have been coordinating a software project as a tech lead. From a PR perspective, we are calling this position as a tech lead, but in reality, I am undertaking an architect role.

It is a lot of fun to launch something from scratch. Sometimes it is not fun, as decisions in the dark may appear scary at times, but as a part of a Scrum team, we are always there to correct…

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#architecture #computer science #Maintainability #requirement analysis #Software Engineering

Using Strings in JavaScript

In software development, working with strings is a common problem. We often read, process, and write text files, perform logging on the activities of a system, or analyze user input.

Learning how to perform string operations is essential in any programming language.

Let’s first recap what you already know about strings from the JavaScript fundamentals article.

Creating JavaScript strings

Strings…

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#ES6 #Javascript #Tutorial

Using JavaScript with HTML and CSS

This is another episode of the JavaScript for Beginners series.

In the first post, you have learned how to write basic JavaScript code. In this article, you will find out how to use JavaScript with HTML and CSS.

The goal of this article is not to teach you the basics of CSS or JavaScript button click event handling, but to show you how HTML, CSS, and JavaScript is structured.

Creating the Markup

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#css #events #html5 #Javascript #Tutorial

Big O Notation for Beginner Tech Interview Candidates

Even though you have seen many tech interview exercises already, we have not covered algorithmic complexity yet. Therefore, I will just give you a straight to the point explanation of the big O notation.

Big O is a performance metric measuring the worst case complexity of an algorithm. Suppose N is the size of the input. Let’s see some examples for complexities considered in this article.

O(1):…

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#Algorithms #computer science

Higher Order Functions in JavaScript

In this article, you will learn about higher order functions. An important cornerstone of functional programming is higher order functions. If you want to write programs in mostly functional style, it is inevitable that you master the basics of higher order functions.

First, you will learn the simple definition of higher order functions.

I will make sure you remember the definition by showing you…

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#ES6 #Functional Programming #Javascript

What's New in ES2018?

What’s New in ES2018?

This article will give you an overview on the new features of ES2018.

First, we will discuss the new features of ES2018. Then you will learn what you need to do to start using them today.

You may want to try out the code examples in your browser. Just open the developer tools of Google Chrome. If you are using version 66 or higher, you are golden when it comes to ES2018 support.

The proposals are…

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#computer science #ES6 #Javascript #regex

JavaScript Tutorial for Absolute Beginners

As I promised in my last article on JavaScript fundamentals, you can expect some beginner-friendly content on this blog along with some learning paths.

I strongly believe in practical application. Therefore, I will not bore you with facts, long theory, or rant about which parts of JavaScript I consider good or bad. This tutorial is all about getting our hands dirty and understanding how…

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#ES6 #Javascript #Learning #Tutorial

ES2017 Object and String Extensions

This article is a continuation of last week’s post on ES2017 Async-Await, detailing the updates of ES2017.

Check out the ES2016 plus compatibility table for more information on the current browser support. Most likely, you will need a transpiler.

Use the ES2017 Babel Preset for code transpilation if you want to support older browsers.

New Object Extensions

In this section, we will introduce three

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#Javascript

A Practical Introduction to ES2017 Async-Await

The ability to write asynchronous functions is a major update in ES2017.

In order to understand this chapter, I suggest that you review the chapter on promises.

What are asynchronous functions?

Asynchronous functions are functions that return a promise. We denote them by using the async keyword.

const loadData = async function( value ) { if ( value > 0 ) { return { data: value }; } else { throw…

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#ES6 #Functional Programming #Javascript

Using JavaScript in 2018 - Experience and Opportunities

Using JavaScript in 2018 – Experience and Opportunities

If you have read most of the blog posts of zsoltnagy.eu, you can conclude that most of the articles require at least some basic knowledge about JavaScript. The main exception is the JavaScript Basics category.

This article is in the basics category too, which means, it requires absolutely no JavaScript knowledge. In fact, even without knowing anything about JavaScript, by the end of this…

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#computer science #ES6 #Javascript #Learning #Software Engineering

The process of handling raises differs from company to company. Some companies have fixed raises, and they have a process for extraordinary raises. This process has to be executed, and approvals have to be collected. If you are with a bureaucratic company, this process may be quite complex.

This is Part 2 of the software developer's guide on asking for a raise. If you have not read Part 1, I encourage you to read it here. In the first part, we laid down the foundations for the proper mindset that helps you reach your financial goals. In this article, we will investigate the

Most software developers reach a point in their career, where their job is not more fulfilling. When our careers reach a plateau, we realize, it seems, there is no way to grow. Some people accept their fate, and pursue goals in other areas in their lives. As soon as they stop focusing on their career, motivational

#it career #itcareers #dreamjob #softskills #software developers #developer career

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