How to Reverse a String in Go?

How to Flip a String's Characters in Go

In Go, there's a way to reverse the order of characters in a string. Here's how:

1. Represent the String as Runes:

In Go, Unicode characters are represented by runes, a type similar to integers. So, let's first convert the string into a slice of runes using the []rune(s) syntax.

2. Create a Helper Function:

Define a function called Reverse that takes a string parameter.

3. Iterate over the Rune Slice:

Use a for loop that starts at the beginning (i) and the end (j) of the rune slice. While i is less than j, increment i and decrement j by 1, swapping the values at those indices.

4. Return the Reversed String:

Convert the rune slice back into a string using the string(runes) syntax, and return it.

5. Code Example:

Here's an implementation of the Reverse function:

func Reverse(s string) string {
    runes := []rune(s)
    for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
        runes[i], runes[j] = runes[j], runes[i]
    }
    return string(runes)
}

Now, you can simply call the Reverse function on any string to get its reversed character order.

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