How to Correctly Convert a Sized Byte Array to a String in Go?

Convert Size Byte Array to String in Go

When dealing with byte arrays, such as those obtained after computing an MD5 hash, converting them to strings can be necessary. However, attempting to directly convert a sized byte array to a string can result in an error.

Consider the following code snippet:

data := []byte("testing")
var pass string 
var b [16]byte
b = md5.Sum(data)
pass = string(b)

This code attempts to convert the sized byte array b into a string, but it triggers an error: "cannot convert b (type [16]byte) to type string."

To resolve this issue, you can treat the sized byte array as a slice. A slice provides a flexible view into an underlying array, allowing you to work with a portion of its elements.

The corrected code using a slice:

pass = string(b[:])

In this modified code, we refer to b as a slice by using the [:] notation. This slice includes all elements of b, effectively converting the entire array to a string.

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