5/18/2023 0 Comments Es6 featuresMoreover, if you want to learn more about new JavaScript features and how to use Babel to be able to run your application everywhere check our post about it here.Īs a final word, don't forget to download our free data sheet on JavaScript Security Threats, which provides an overview of the most relevant attacks and how to prevent them. To solve this problem, you can use Babel which fallbacks all main ES6 features to compatible ES5 for old browsers and Node.js too by transpiling the code. Today, not all features are compatible in the main browsers, even the latest version of Node.js still isn’t. ![]() In this post you learned a little bit about some useful features from ES6 (ECMAScript 6). If you need to interpolate data inside a string, you just need to use this syntax: $ To create a template string you need to create a string using grave accent, like in this example: This is a template string. The template string is a powerful feature, which allows you to interpolate data inside a string in an elegant way. You can only change object's attribute this change is allowed for `let` variables you can't change the value of a constant Take a look at this example: // creating a constant Fourth Edition release plan was dropped, few features added later in ES6 & other complex features dropped: 5: ECMAScript 5: Fifth Edition released in 2009: 5.1: ECMAScript 5.1: 5.1 Edition released in 2011, minor changes to meet ISO/IEC 16262:2011 standard: 6: ECMAScript 2015/ES6: Sixth Edition released in 2015, see ES6 chapters for new. As a best practice, always use const to handle with immutable data, because it uses less memory than using let. The main differences between const and let is that const allows you to create constants, and let to do the same as var, but it avoids hoisting problems. ![]() Both are important features and it’s highly recommended to use them instead of the old var to avoid hoisting problems /en-US/docs/Glossary/Hoisting. ![]() Using const and letĪfter a long time using the keyword var to create variables and instantiate objects, the ES6 added two new useful keywords to handle with variables: const and let. We’ll also go over typical features inspired from functional programming languages, for instance arrow functions, let variables, etc. In this post we will go over eight useful and interesting ECMAScript 6 (ES2015) features, such as classes, a feature that makes it easy for developers familiar with object oriented programming to start using JavaScript.
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