One of Go’s initial design requirements was to make it easy to create multi-threaded applications. While many languages support multi-threading, it’s not always easy to implement. Go wanted to make it easy to do this. Consider the following code where it runs sequentially. If you run this, every function call to PrintHello() has to complete…
Go doesn’t have classes like Java or C++. Instead they have something similar to a struct that the C language has. In fact, they even call it a struct. Unlike a class, where you encapsulate your data, having it private, instead here, the attribute data is all public. Secondly, the methods are not built into…
In Go, packages and modules play a crucial role in organizing and managing code. Here’s a breakdown of their differences and how they work: Packages: Definition: A package is a collection of Go source files in the same directory. It acts as a namespace for the code within it. This is what we will mostly…
Working with a Map in Go is like Dictionaries in Python, or Maps in Java. A Map stores information as key/value pairs. This is a nice thing about data structures, they are often found in other languages. Defining the Map When you define one in Go, you need to define the variable as a type…
In Go, arrays and slices are both used to store sequences of elements, but they have important differences in structure, flexibility, and use cases. Working with Arrays Arrays in Go are similar to C/C++ where they are of a fixed length, and all members of the array are of the same data type. Sometimes this…
Go, like all modern languages, has functions. As we saw in the example where we built our first program in Go, functions start with the func keyword. To create a basic function that doesn’t take any parameters and doesn’t return a value, is simple: If you want to pass parameters you put them in the…
Performing Math in Go is like many other programing languages in many ways. Of course, the standard mathematical symbols apply: Operator Description + Addition – Subtraction * Multiplication / Quotient % Remainder & Bitwise AND | Bitwise OR ^ Bitwise XOR &^ Bit clear (AND NOT) << Left shift >> Right shift (logical) The Math…
Now that you have your first program in Go, and you know that it is installed correctly, let’s look at modifying some code to get a more robust program. Declaring Variables Go is a statically typed language (i.e. it is defined when variables are created and those variables cannot change) that does not permit operations…
