Api modernization

[publicJorn]

Hi @nayaabkhan,

Here's a PR that does the following:

• Removed componentWillReceiveProps so it's future proof. Kept the class layout in favour to function/hook layout, so polyglot can still be bound to the instance.
• Moved the this._polyglot calls inside an if, assuming messages will only need to change when locale changes. This is a bit more efficient.
• Introduced new prop forceReInit that negates above check (mimicks old default behaviour)
• More tests

The second commit is a personal thing, but I think it's neater. Instead of calling translate()(Component) you can now just call translate(Component). There's no initialisation going on in I18n anyway.

It's a breaking change, so I can remove it from this PR if you don't like it.

[ctavan]

This should go into the other commit!

[ctavan]

This doesn't look like valid javascript… Mixed up with the other commit?!

[ctavan]

@nayaabkhan can we get the componentWillReceiveProps removal commit?

I personally don't think there's a need to introduce a breaking API change (second commit) at this point, but it would be nice to get the modernizations in place.

@publicJorn I believe the first commit contains a few changes related to your api change, see inline comments… Would you mind having a second look? Or maybe just open another pullrequest with just the code modernization without the breaking change to increase chances we get this merged quickly? Thanks for your work!

[publicJorn]

Thanks @ctavan for the review. I fixed translate. Don't know how the tests passed, they didn't when I checked locally. But now they do.
Checked the example after build, it also runs.

I discarded the api change.

@nayaabkhan are you still managing this project? I see some other PRs have been open for some time now.

Myself, I've moved to i18next, because I needed more features than polyglot could offer. But I'll leave this PR open.

[nayaabkhan]

@publicJorn Thanks for your PR. Yes, I do maintain this project. Unfortunately, I cannot put myself dedicatedly on this project as I work full time elsewhere. But I make sure to keep maintaining this project during the weekends.

[ctavan]

The deprecation warning was also removed in 9210c44 and no longer appears in react-polyglot@0.6.0