How to Handle Long String Literals in Go: Raw Strings, Concatenation, or Template Strings?

Extended Options for Handling Long String Literals in Go

When confronted with lengthy string literals, Go programmers often encounter the dilemma of balancing readability and efficiency. The provided code snippet showcases two approaches: raw quotes and concatenated quotes.

1. Raw Strings

db.Exec(`UPDATE mytable SET (I, Have, Lots, Of, Fields) = ('suchalongvalue', 'thisislongaswell', 'ohmansolong', 'wowsolong', 'loooooooooooooooooooooooooong')`)

While raw quotes provide a convenient way to define multi-line strings, they come with a potential drawback. Preceding spaces and newlines are included in the resulting string, which can introduce unsightly gaps within the database field.

2. Multiple Concatenated Quotes

db.Exec("UPDATE mytable SET (I, Have, Lots, Of, Fields) = " + 
    "('suchalongvalue', 'thisislongaswell', 'ohmansolong', " +
    "'wowsolong', 'loooooooooooooooooooooooooong')")

Concatenating multiple quoted strings offers a more flexible approach. However, it introduces line breaks and potential syntax errors when not carefully managed.

Alternative Approach: Template Strings

To achieve a clean and efficient solution, many Go programmers opt for template strings:

q := `UPDATE mytable SET (I, Have, Lots, Of, Fields) = ` +
     `('suchalongvalue', ` + 
     `'thisislongaswell', ` +
     `'wowsolong', ` + 
     `loooooooooooooooooooooooooong')`

db.Exec(q)

Template strings combine the readability of raw strings with the flexibility of concatenation. By using backticks (``) as string delimiters and string interpolation to concatenate values, we create a visually pleasing and syntactically correct string. This approach is considered idiomatic Go and is highly recommended for handling long string literals.

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