SFDCWallah

The maximum ES version that can be used in Aura components depends on the version of the JavaScript engine used by the browser or runtime environment that the component is running in.

Aura supports the ECMAScript 5 (ES5) standard, which is supported by all modern browsers and provides a good level of compatibility for most web applications. However, if you want to use newer features from ECMAScript versions such as ES6, ES7, or ES8, you will need to use a transpiler like Babel to convert your code to ES5 syntax.

Using a transpiler allows you to write your code in modern syntax and take advantage of newer language features, while still ensuring that your code will run on all browsers and runtime environments that support ES5.

In summary, while Aura components can support newer versions of ECMAScript with the help of a transpiler, it’s important to consider the compatibility requirements of your project and choose the appropriate version of JavaScript accordingly.