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What’s new for JavaScript in ES2021?

ECMAScript 2021 introduces several new features to the JavaScript language

Stack Overflow Developer Survey 2021: JavaScript still king

JavaScript remains the most popular technology or programming language overall

The symbol data type: syntax and use cases

The symbol type prevents object key clashes and can help protect private data

Object destructuring: storing data from JS objects in variables

Easily extract properties from objects and store them in variables

Convert a JavaScript object to an array with Object.entries()

Easily convert a JS object to an array using the Object.entries() method.

Spreading…with the JavaScript spread operator

Using the spread operator (...), we can easily capture iterable elements and use them elsewhere.

How to open a new browser window from JavaScript

Use the open() method on the window object to open a new window in the browser.

innerText vs textContent in JavaScript

Learn the difference between innerText and textContent!

What’s the difference between methods and functions?

Learn how methods are functions able to act upon the object in which they are stored.

How to use innerHTML safely

Learn how to render content to the DOM more securely