Why Use Slices Instead of Pointers to Arrays in Go?

Understanding Pointer to Array in Google Go

When passing a pointer to a slice as a parameter to a function, one can expect to access it using the "" operator. However, in Go, attempting to access the slice directly using y[i j] raises compiler errors.

The official Go documentation recommends utilizing slices over pointers for array manipulation. Slices are efficient reference types that allow for direct access to array elements. To achieve this, in the function definition, one should declare the parameter as a slice, as seen in the following example:

func conv(x []int, xlen int, h []int, hlen int, y []int) {
    // ...
}

Within the function, one can directly access the slice elements as follows:

y[i+j] += x[i]*h[j]

By using slices, one avoids the need for pointer dereferencing and can efficiently access array elements without additional steps. This approach aligns with the recommended practices for effective Go programming.

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