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Dart and Flutter

Flutter Solve major problems related to TextField

TextField is often used for input in Flutter but we (at least I) run into a lot of problems to achieve what we want. I o...
Dart and Flutter

Flutter Timestamp input by TextField

I posted the following article before to get Date and Timestamp. But sometimes it's better to have a simple UI. I wanted...
Golang

Golang Unit testing with Gomega matcher

A function result somehow needs to be compared in a unit test to know whether the function returns the expected value or...
Golang

Golang A good way to get struct data with gomega matcher

It took me about 20 minutes to know the way to access a property in a struct that is passed by a channel in a unit test....
JavaScript/TypeScript

Read all files and subdirectories in iterative call

I needed to implement a function that reads all the files and the subdirectories. Many frameworks offer such a function ...
Python

Python How to pass a class constructor as an argument

Is it possible to pass a constructor as a parameter? Yes, it is. There are multiple ways to instantiate a different clas...
Python

Python How to mock constructor with mockito for unit testing

A class constructor directly needs to be called in a class in some cases. It might not be a good design but sometimes it...
Python

Python How to handle an error from finally block

If an error occurs in finally block, the first error caught in except block is overwritten. How can we know both errors? Let's split the block and add both errors into one custom error.
Golang

Golang errors.Is() does not work for Custom error?

How can a custom error implemented in Golang? Define struct and Error() method for it. Implement Is() method if errors.Is() needs to be used for the custom error.
Dart and Flutter

Dart How to define an array with mixed data type in gRPC

An array and map data type is useful. Is it possible to use them in gRPC? YES, it is. Let's define them in Protocol Buff...
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