Go for range construct

The for range construct is useful in many context. It can be used to traverse every item in a collection. It is similar to foreach in other languages. But, we still have the index at each iteration in for range construct.

Syntax:

Go For Range Example

import "fmt"
func main() {
   nums := []int{2, 3, 4}
   sum := 0
   for _, value := range nums {// "_ " is to ignore the index
      sum += value
   }
   fmt.Println("sum:", sum)
   for i, num := range nums {
      if num == 3 {
         fmt.Println("index:", I)
      }
   }
   kvs := map[string]string{"1":"mango","2":"apple","3":"banana"}
   for k, v := range kvs {
      fmt.Printf("%s -> %s\n", k, v)
   }	
   for k := range kvs {
      fmt.Println("key:", k)
   }
   for i, c := range "Hi" {
      fmt.Println(i, c)
   }
}

Output:

sum: 60
1 -> mango
2 -> apple
3 -> banana
key: 1
key: 2
key: 3
0 72
1 105

Next TopicGo Goto

← prev next →

For Videos Join Our Youtube Channel: Join Now

Feedback

Send your Feedback to [email protected]

Help Others, Please Share

Learn Latest Tutorials

Splunk

SPSS

Swagger

Transact-SQL

Tumblr

ReactJS

Regex

Reinforcement Learning

R Programming

RxJS

React Native

Python Design Patterns

Python Pillow

Python Turtle

Keras

Preparation

Aptitude

Reasoning

Verbal Ability

Interview Questions

Company Questions

Trending Technologies

Artificial Intelligence

AWS

Selenium

Cloud Computing

Hadoop

ReactJS

Data Science

Angular 7

Blockchain

Git

Machine Learning

DevOps

B.Tech / MCA

DBMS

Data Structures

DAA

Operating System

Computer Network

Compiler Design

Computer Organization

Discrete Mathematics

Ethical Hacking

Computer Graphics

Software Engineering

Web Technology

Cyber Security

Automata

C Programming

C++

Java

.Net

Python

Programs

Control System

Data Mining

Data Warehouse

^{Like/Subscribe us for latest updates or newsletter}

Go Language

Go Controls

Go Functions

Go Arrays

Go Strings

Go Types

Go Map

Go Error

Go Concurrency

Go Time

Go Misc