Arrays

var array [3]string
array[0] = "Hello"
array[1] = "Golang"
array[2] = "World"

values := [5]int{1, 2, 3, 4, 5}

 
// Determining min and max
values[1:3] // {2, 3, 4}
 
// Determining only max will use min = 0
values[:2] // {1, 2, 3}
 
// Determining only min will use max = last element
values[3:] // {3, 4}
 
// Length: number of elements that a slice contains
len(values) // 5
 
// Capacity: number of elements that a slice can contain
values = values[:1]
len(values) // 2
cap(values) // 5
 
// Slice literal
slice := []bool{true, true, false}
 
// make function: create a slice with length and capacity
slice := make([]int, 5, 6) // make(type, len, cap)
 
// Append new element to slice
slice := []int{ 1, 2 }
slice = append(slice, 3)
slice // { 1, 2, 3 }
slice = append(slice, 3, 2, 1)
slice // { 1, 2, 3, 3, 2, 1 }
 
// For range: iterate over a slice
slice := string["W", "o", "w"]
 
for i, value := range slice {
i // 0, then 1, then 2
value // "W", then "o", then "w"
}
 
// Skip index or value
 
for i := range slice {
i // 0, then 1, then 2
}
 
for \_, value := range slice {
value // "W", then "o", then "w"
}