Arrays in Golang

A Beginners guide to arrays in golang.

What is an array?

An array is a collection of elements of a specified length and type.

• Quick Note: Most go programmers use slices instead of arrays when coding in golang.

Key Points:

There are two ways of declaring an array in golang:

1. Declare and initialize : DaysOfTheWeek := [7]string{“Sunday”, “Monday”, “Tuesday”, “Wednesday”, “Thursday”, “Friday”, “Saturday”}
2. Declare without giving the initial values: var TestScores [5]int (values initially default to 0 for integers)

Getting a value:

DaysOfTheWeek[0] // “Sunday”

Setting a value:

TestScores[0] = 100 // sets index 0 to the value of 100

Get the length of an Array:

len(DayOfTheWeek) //7