Golang : How to iterate a slice without using for loop?



Tags : golang for-loop recursive iterate

A very simple example on how to iterate a slice of integers without using a for loop and use recursive method instead.


 package main

 import (
  "fmt"
 )

 func main() {
  integerSlice := []int{0, 1, 2, 3, 4}
  loopIntegerSlice(integerSlice, 0)
 }

 func loopIntegerSlice(numbers []int, index int) int {

  // iterate a slice and print out the elements without using a for loop

  if index == len(numbers) {
 return numbers[index-1] // break here
  } else {
 n := numbers[index]
 fmt.Println(n)
 return loopIntegerSlice(numbers, index+1) // use recursive method
  }
 }

Output:

0

1

2

3

4

  See also : Golang : Find the length of big.Int variable example



Tags : golang for-loop recursive iterate

By Adam Ng(黃武俊)

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