LDEventName type does not allow for "change:<flag-name>"

[rmanalan]

https://github.com/launchdarkly/js-client/blob/556711701d74d7c4a50981cae0547ec78f3d5eec/typings.d.ts#L24

Because the LDEventName ts type is defined as 'ready' | 'change', you can't use this syntax for ldclient.on():

ldclient.on('change:<flag-name', cb);

[eli-darkly]

Thanks for catching that - we should have a fix out shortly (probably by just changing that parameter to "string" and documenting the events for on). There are a couple other event names that we forgot to include there too.

[eli-darkly]

OK, version 2.7.3 is out now with a fix for this. Sorry about the error.