How to Resolve \"Mismatched Types String and Byte\" Error in Golang?

Fix: Mismatched Types String and Byte in Golang

In Golang, the "invalid operation: new_str str[i 1] (mismatched types string and byte)" error occurs when attempting to concatenate a string and a byte. Explicit conversions are required to resolve this issue.

The problem arises in the code snippet provided:

<code class="go">for i < len(str) - 1 {
    new_str = new_str + str[i + 1]
    i = i + 1
}</code>

To fix this, we need to convert str[i 1] to a string using the string() function:

<code class="go">for i < len(str) - 1 {
    new_str = new_str + string(str[i + 1])
    i = i + 1
}</code>

A similar issue occurs in line 24. To resolve it, we apply the same conversion:

<code class="go">return f(g(str)) + string(str[0])</code>

After these fixes, the code will operate correctly and concatenate strings properly.

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