inputParagraph.Text = fmt.Scanf("%s", input) // Error: assignment
mismatch: 1 variable but fmt.Scanf returns 2 values
The error message is clear: fmt.Scanf returns two values (BTW, neither of
them is the value extracted). Check the documentation for fmt.Scanf here:
https://golang.org/pkg/fmt/#Scanf
https://golang.org/pkg/fmt/#hdr-Scanning
https://golang.org/pkg/fmt/#example_Sscanf
outputParagraph.Text += fmt.Printf("The string you entered is: %s", input)
// multiple-value fmt.Printf() in single-value context
In this case you want fmt.Sprintf instead:
https://golang.org/pkg/fmt/#Sprintf
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