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How to slice elements in Golang?

Slicing is a computationally fast way to methodically access parts of your data.

Example

package main

import "fmt"

func main() {
	var countries = []string{"india", "japan", "canada", "australia", "russia"}

	fmt.Printf("Countries: %v\n", countries)

	fmt.Printf(":2 %v\n", countries[:2])

	fmt.Printf("1:3 %v\n", countries[1:3])

	fmt.Printf("2: %v\n", countries[2:])

	fmt.Printf("2:5 %v\n", countries[2:5])

	fmt.Printf("0:3 %v\n", countries[0:3])

	fmt.Printf("Last element: %v\n", countries[4])
	fmt.Printf("Last element: %v\n", countries[len(countries)-1])
	fmt.Printf("Last element: %v\n", countries[4:])

	fmt.Printf("All elements: %v\n", countries[0:len(countries)])

	fmt.Printf("Last two elements: %v\n", countries[3:len(countries)])
	fmt.Printf("Last two elements: %v\n", countries[len(countries)-2:len(countries)])

	fmt.Println(countries[:])
	fmt.Println(countries[0:])
	fmt.Println(countries[0:len(countries)])
}

Output

Countries: [india japan canada australia russia]
:2 [india japan]
1:3 [japan canada]
2: [canada australia russia]
2:5 [canada australia russia]
0:3 [india japan canada]
Last element: russia
Last element: russia
Last element: [russia]
All elements: [india japan canada australia russia]
Last two elements: [australia russia]
Last two elements: [australia russia]
[india japan canada australia russia]
[india japan canada australia russia]
[india japan canada australia russia]
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