What is the best way to learn JavaScript in 2020?

Here is a couple of useful courses and JavaScript tutorials to learn some of the interesting technologies:

1. The Complete JavaScript Course 2021: Build Real Projects! (link)
2. The Web Developer Bootcamp (link)
3. JavaScript Bootcamp — Build Real World Applications (link)
4. Javascript Essentials (FREE)(link)

What is the best way of learning JavaScript?

The 5 Best Ways to Learn JavaScript Fast

1. Self-Guided Websites and Courses.
2. Books.
3. Coding Boot Camps.
4. Meetups and Networking Events.
5. Starting Your Own Projects.

Should I learn JavaScript 2021?

JavaScript forms the foundation of almost everything you see on the Internet. So, with web development on the rise in 2021, it’s a good one to learn. JavaScript can used in both the front-end and back-end to add dynamic functionalities to websites.

What are the most common mistakes in JavaScript?

This chapter points out some common JavaScript mistakes. JavaScript programs may generate unexpected results if a programmer accidentally uses an assignment operator (=), instead of a comparison operator (==) in an if statement. This if statement returns false (as expected) because x is not equal to 10: var x = 0;

Why does my JavaScript program generate unexpected results?

JavaScript programs may generate unexpected results if a programmer accidentally uses an assignment operator ( = ), instead of a comparison operator ( ==) in an if statement. This if statement returns false (as expected) because x is not equal to 10:

What happens when you use a named Index in JavaScript?

In JavaScript, objects use named indexes. If you use a named index, when accessing an array, JavaScript will redefine the array to a standard object. After the automatic redefinition, array methods and properties will produce undefined or incorrect results: