How to Implement a FIFO Queue in Go Using a Slice?

FIFO Queue Implementation in Go Using Slice

Implementing a First-In-First-Out (FIFO) queue in Go requires a simple and efficient container type. Go offers three options: heap, list, and vector. However, for a basic and fast FIFO queue, a slice is the most suitable choice.

The following code demonstrates how to use a Go slice as a FIFO queue:

package main

import (
    "fmt"
)

func main() {
    // Create an empty slice as the queue
    queue := make([]int, 0)

    // Push an element to the queue (enqueue)
    queue = append(queue, 1)

    // Get the first element without removing it (peek)
    x := queue[0]

    // Remove the first element (dequeue)
    queue = queue[1:]

    // Check if the queue is empty
    if len(queue) == 0 {
        fmt.Println("Queue is empty!")
    }
}

The slice's append and slicing operations ensure that the FIFO behavior is maintained, making it a reliable and efficient implementation for simple queue requirements.

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