Release v0.34.0 · facebook/flow

Likely to cause new Flow errors: Dictionary types (i.e. {[key: string]: ValueType}) were previously covariant which proved to be a significant source of unsoundness. Dictionary types are now invariant by default in order to fall into consistency with other collection types. It is possible to opt in to explicit covariance with new syntax: {+[key: string]: ValueType}, but note that this is now enfor

[efcl]

FlowType v0.34.0リリース。 `empty` typeの追加、AsyncIterationの対応など

[koba04]

Flowtype v0.34.0