Browser retro compatibility before 2020 : ||= operator about ckeditor5

[Reinmar]

Hi :) We should probably do a better job at communicating which browsers we intend to support. But 4y old ones won't be on the list for sure.

In this case, this may be a single operator now, but this is a large project and we guard the ES features used by defining the target ES version when compiling everything together. If you meant that we could easily remove the use of this operator – yes, we can. But it may return next week in someone else's code (including our deps).

Anyways, the solution is to use Babel when integrating CKE5 to transpile the code down to the ES version that you want to target. You know your audience and how backwards-compatible you want your product to be.

[Name-less]

Thanks for your answer, a better solution is to use an alternative that respect backwards compatibility like https://www.tiny.cloud/: )

[Reinmar]

TinyMCE has a very similar approach to supporting old browsers to us: https://www.tiny.cloud/docs/tinymce/latest/support/

And, once again, you can use Babel to ensure compatibility (at least from the syntax perspective) with the old browser engines.