Introduction to Go

Installation :

On fedora :

sudo dnf install golang

Exercise 1:

Using a loop, print every number between 1 and 100 !

Exercise 2:

Code a "simpleCalculator" function that adds two numbers together
This function takes 2 parameters:

• The number on the left of the '+' operator
• The number on the right of the '+' operator

simpleCalculator(2, 2) -> 4

You can add any other operation !

Exercise 3:

Write a "countLetter" function to count all letters from a file and print it.
This function take 1 parameter:

• The file path of your file.

countLetter("myFile")

Exercise 4:

Write a "countWord" function whose objective is to count the number of times a word appears in a sentence.
This function takes 2 parameters:

• The sentence you will search through.
• The word you look for in the sentence.

countWord("My cat is playing with my dog!", "my") -> 2

Exercise 5:

Make a simple "checkThat" function to check parameter integrity !
This function takes 1 parameter:

• A list of input parameters.

checkThat([1, 2, 3, 4, 5]) -> true
checkThat([1, 2, 3, a, 5]) -> false

Exercise 6:

Now, let's make an "appendTofile" function which appends a string to a file !
That function takes 2 parameters:

• The file you want to append to.
• The string you want to append to your file.

appendToFile("myFile", "append this") -> if file empty : "append this"
appendToFile("myFile", "append this") -> if file is not empty : "... append this"

Exercice 7:

Now to test all of your functions, make some unit tests !

Exercice 8:

If you reached this part, you learned a lot. But if you want to learn more, take a look at class and make Human class with age, name, ect.