Golang Golang How to filter a Slice with Generics
Golang doesn't provide utility functions for Slice. It's easy to implement filter to filter the element but it should be implemented with Generics. Let's check how to do it.
Golang
Golang 
Golang Golang Generics type constraints with interface and Tilda
How can we implement if an extended type (Type Definition) needs to be covered by interface for Generics? Let's define an interface with Tilda!
Golang Golang How to start using gRPC in devcontainer
gRPC is one of the nice tools when two applications need to be communicated with each other. It's not hard to implement ...
Golang Golang Don’t pass a value to a callback in a loop with range
If a value is passed to a callback in a loop with range keyword, it can introduce a bug. The desired value is not used in the callback if it is triggered later. You should know how to work range keyword in this post.
Golang Golang How to extract the desired data from a string by regex
How can we implement it to extract values from a string? Using a regular expression is the right approach for it. Compile regex string and find string submatch.
Golang Golang How to define enum and understand how iota works
What is the best practice to define enum in Golang? Use iota for enum and define String() func.
Golang Golang How to check if key exists in map
How to initialize mapThere are two ways to initialize map in Golang.Initialization without any key-valueIf it's not nece...
Golang Golang How to convert string to float, int
Do you want a cheat sheet to know how to convert value to another data type? This article covers what you want.
Golang Golang Improper package structure exports unneeded members
Do you want to write unit tests for methods but don't want to expose them to outside of the package? Then, move the methods to internal package. The functions defined in internal package are not exposed. Let's learn how to use it.
Golang Golang How to mock an object by yourself for unit testing
It might be too big to introduce a mock framework. It's better to create a mock object by ourselves in this case.