How to Achieve Multiple Assignments from Arrays in Go?

Multiple Assignments from Arrays in Go

In Python, unpacking from arrays can be done elegantly with assignments like:

a, b = "foo;bar".split(";")

Go does not support such general packing/unpacking. However, there are several ways to achieve multiple assignments.

Custom Functions:

One approach is to create a custom function that returns multiple values, like:

func splitLink(s, sep string) (string, string) {
    x := strings.Split(s, sep)
    return x[0], x[1]
}

You can then assign directly from the function call:

name, link := splitLink("foo\thttps://bar", "\t")

Variadic Pointer Arguments:

Another option is to use variadic pointer arguments:

func unpack(s []string, vars... *string) {
    for i, str := range s {
        *vars[i] = str
    }
}

This allows you to assign values to multiple variables:

var name, link string
unpack(strings.Split("foo\thttps://bar", "\t"), &name, &link)

Choice of Approach:

The custom function approach may be more readable for common scenarios where you want to split and assign only two variables. For more complex or variable-sized array scenarios, the variadic pointer arguments approach may be more flexible.

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