I think it would be wise for me to get a better handle on the go programming language. I've used it somewhat in the past, but that use was mostly small code changes to an existing application. A deeper dive would probably benefit me! The way I like to learn a new programming language is through small bite-sized experiments, and the official go website allows us to experiment with go without even having to install anything on our system! I'll be taking the tour route: https://tour.golang.org/
Here's our first program:
package main
import "fmt"
func main() {
fmt.Println("Hello, world!")
}
And here's the output:
Hello, world!
So, we've defined that as soon as the program starts, it's to print Hello, world! and then exits. One thing I notice right off the bat is that go is a little less verbose than some other server side languages such as Java or C/C++. That's very nice and plus in my book!
The first thing after the hello world program that we're introduced to is the concept of a package.
package main
import (
"fmt"
"math/rand"
)
func main() {
fmt.Println("My favorite number is", rand.Intn(10))
}
As you can see, we've imported two packages, fmt and math/rand. fmt has functions for printing to the console--among other things-- and math/rand has a Intn function that can be use to generate a random integer.
OUTPUT
My favorite number is 1
Now we get introduced to factored import statements. We could write our code like this:
package main
import "fmt"
import "math"
func main() {
fmt.Printf("Now you have %g problems.\n", math.Sqrt(7))
}
But, we could make our code more concise by using a "factored" import statement, which looks like this:
package main
import
(
"fmt"
"math"
)
func main() {
fmt.Printf("Now you have %g problems.\n", math.Sqrt(7))
}