Update for Chai v4.0

[meeber]

A breaking change in Chai v4.0's property assertion causes the data assertion to fail whenever only one argument is provided. This PR fixes it.

[meeber]

@keithamus I've updated this PR for the Chai 4.0 release. Although Chai v4.0 is now a dependency for the test suite (due to changes in failed assertion message text), the library should still support older versions of Chai.

[keithamus]

LGTM but I'd like someone from @chaijs/chai-jquery to approve this too.

[jscharett]

Any hope to get this merged soon?

[gesellix]

Ping @chaijs/chai-jquery
Is this project also paused like chai-things? See chaijs/chai-things#58 (comment)

[revelt]

Hi all, it's been one and half years in pending approval status, let's assign directly to particular people, otherwise nobody will pick it up.

[meeber]

@chaijs/chai Can we force this one through and release a new version?

[keithamus]

@meeber I'm happy for you to merge & release if you're comfortable doing that? LMK if you need any access for passwords or something

[meeber]

Thanks @keithamus. I'll create a PR to bump the version in package.json, and draft a new release in GitHub. Let me know if there's anything else that's needed for this plugin.

I'll need help with the actual npm publish. I'm guessing my npm account doesn't have permission to do that.

This would be a good plugin for us to recruit a champion / maintainer for. I don't use jquery or chai-jquery so it's a bit awkward for me to do this, and definitely not something I want to take on long-term responsibility for. I was just deleting some old forks in my GitHub repo list when I discovered I had an old PR still open in this repo from the Chai v4.0 update.