Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to find the last index value in slice of bytes in Golang?
Slices of bytes in Golang are used to represent a sequence of bytes. Finding the index of the last element in a slice of bytes can be useful in many scenarios. In this article, we will discuss how to find the last index value in a slice of bytes in Golang.
Steps to Find The Last Index Value in a Slice of Bytes in Golang
Create a slice of bytes.
Get the length of the slice using the len() function.
Traverse the slice from the end using a loop.
Compare each element of the slice with the desired element.
If the element is found, return the index.
If the element is not found, return -1.
Let's see an example to understand these steps −
Example
package main
import "fmt"
func main() {
// create a slice of bytes
byteSlice := []byte{'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd', '!'}
// get the length of the slice
length := len(byteSlice)
// traverse the slice from the end using a loop
for i := length - 1; i >= 0; i-- {
// compare each element of the slice with the desired element
if byteSlice[i] == 'd' {
// if the element is found, return the index
fmt.Println("The last index of 'd' in the slice is:", i)
return
}
}
// if the element is not found, return -1
fmt.Println("The element 'd' is not present in the slice.")
}
Output
The last index of 'd' in the slice is: 10
Explanation
In this example, we created a slice of bytes and stored the string "Hello World!" in it. We then got the length of the slice using the len() function. We traversed the slice from the end using a loop and compared each element of the slice with the desired element 'd'. When we found the element 'd', we returned the index. If the element 'd' is not present in the slice, we returned -1.
Conclusion
Finding the last index value in a slice of bytes can be useful in many scenarios. In this article, we discussed how to find the last index value in a slice of bytes in Golang. We also saw an example to understand the steps involved in finding the last index value.
325 Views
