Gain insights into JavaScript from basics to ES2021, delve into TypeScript essentials, and test your knowledge through quizzes and coding challenges to reinforce learning.

node.tar.gz

node:latest

Jan/2021 Updated to include ES2021

Whether you are a complete beginner or you have some knowledge of JavaScript, this course will guide you from the basics of the language to all the new features introduced up until 2021.  You’ll test your knowledge with quizzes and some coding challenges at the end of each chapter. 

After following this course, the functions and variables let, const, generators, promises and async won't be a problem anymore.

If you want to experience something new, this course also includes an introduction to the basics of TypeScript, which is a must-know for any JavaScript developer.

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I have been working as a front-end developer for over 5 years but I am still reading the book by @montalesi because I find it really exhaustive and well written.

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The Complete Guide to Modern JavaScript

### What is the correct syntax for the spread operator for objects?

<h3>What is the correct syntax for the spread operator for objects?</h3>


### What is the correct output of the following code:

```javascript
let myObj = {
  a:1,
  b:2,
  c:3,
  d:4,
}

let { a, b, ...z } = myObj;
console.log(z);
```

<h3>What is the correct output of the following code:</h3>
<pre><code class="language-javascript">let myObj = {
  a:1,
  b:2,
  c:3,
  d:4,
}

let { a, b, ...z } = myObj;
console.log(z);
</code></pre>


### What is the correct output of the following code:

```javascript
const myPromise = new Promise((resolve,reject) => {
  resolve();
})
myPromise
.then( () => {
    return '1';
  })
  .finally(()=> {
    return '2!';
  })
  .then( res => {
    console.log(res);
  })
```

<h3>What is the correct output of the following code:</h3>
<pre><code class="language-javascript">const myPromise = new Promise((resolve,reject) =&gt; {
  resolve();
})
myPromise
.then( () =&gt; {
    return '1';
  })
  .finally(()=&gt; {
    return '2!';
  })
  .then( res =&gt; {
    console.log(res);
  })
</code></pre>


In this lesson, we will solve a quiz related to the features introduced in ES2018.

Introduction

Intro To JavaScript

ES6

From ES2016 to ES2022

Intro To TypeScript

Appendix

Quiz

What is the correct syntax for the spread operator for objects?