How is whenCompleted() different from then() in Future?

Technology Community › Category: Flutter › How is whenCompleted() different from then() in Future?

VietMX Staff asked 4 years ago

.whenComplete will fire a function either when the Future completes with an error or not, while .then returns a new Future which is completed with the result of the call to onValue (if this future completes with a value) or to onError (if this future completes with an error)
.whenCompleted is the asynchronous equivalent of a “finally” block.

Question Tags: Flutter, Middle Level