Searching for: Optionals in Go
Function Declaration
Language: Go

A function (method) is a block of code that can be called from another location in the program or class. It is used to reduce the repetition of multiple lines of code.

Slices
Language: Go

Slices are used to store multiple sequenced values in one variable, similar to arrays. Unlike arrays, slices can be dynamically sized.

Closures
Language: Go

Closures are functions which enclose other functions, often with a function return type. The inner functions are able to reference the variables around the closure function.

Switch Case
Language: Go

A switch case is used test variable equality for a list of values, where each value is a case. When the variable is equal to one of the cases, the statements following the case are executed.