Package : A folder that contains multiple GO files. Module : A collection of packages.
** About GO **
- Statically Typed : Data types have to be either declared or inferred by initialisation.
- Strongly Typed : Can't do operations between different data type variables or objects.
- GO is compiled.
- Fast compile time.
- Built in Concurrency. // Goroutines
- Simplicity (Easy, concise syntax and automatic garbage collection etc.)
Every GO project is a module that we track using 'go.mod' file. Create 'go.mod' using ->
go mod init <module_name>. Here <module_name> is generally the path of the project / module in github repo.
go mod tidy: It refreshes the go.mod file to track dependencies.go build <file_path>: It compiles the specified file../file.exe: It executes the .exe binary file to yield the output.go run <file_path>: It builds and runs the file altogether to give output directly.
Every GO file belongs to a package that we specify at the top of the file using
package <name>Every file in the folder belongs to the same package. The main function's name shall be the same as of it's package name.