What are the consequences of concatenating two string values into one?

When concatenating two strings in Go, a new string is created that contains the sequence of characters from both original strings.

Features and consequences:

• Strings in Go are immutable, so concatenation creates a new object in memory.
• If strings are concatenated in a loop, it can lead to significant overhead in terms of memory and time.
• For efficient concatenation of a large number of strings, it is recommended to use strings.Builder.

Example of string concatenation:

s1 := "Hello, "
s2 := "World!"
result := s1 + s2 // "Hello, World!"

Using strings.Builder for optimization:

var builder strings.Builder
builder.WriteString("Hello, ")
builder.WriteString("World!")
result := builder.String()