Use
%q to quote a string in fmt.Sprintf format specifiers GO-R4002
Anti-pattern
Minor
8 months ago
—
a year old
use %q instead of "%s" for quoted strings
34
35// MarshalJSON returns the duration as a JSON string.
36func (d *Duration) MarshalJSON() ([]byte, error) {
37 return []byte(fmt.Sprintf(`"%s"`, d.String())), nil38}
39
40// UnmarshalJSON parses a JSON string into the duration.
Description
%q is same as "%s".
Bad practice
str := fmt.Sprintf("str: "%s"", "Hello World")
// str => str: "Hello World"
Recommended
str := fmt.Sprintf("str: %q", "Hello World")
// str => str: "Hello World"