Benefits of ES2015

Although we briefly touched upon ES2015 (ECMAScript 2015) in the previous chapter, it's possible that you may not be very familiar with it. Most browsers (especially mobile) do have full support for ES2015, if any at all. This is unfortunate, because there are tremendous improvements in syntax and semantics that make it easier to create complex mobile applications.

Thankfully, as you saw in the previous chapter, there are tools that port this functionality back to ES5, which is very well supported in modern browsers. These tools convert the ES2015 syntax and semantics into their ES5 equivalent (where possible). Where a perfect equivalence is not possible, the conversion will get as close as possible, which will still bring us great benefit.

We can't go over every new change in ES2015 in this book; but we do need to go over some common examples, especially if you aren't familiar with the syntax.

Note

If you are developing for older devices, you will want to...