Reports double-quoted strings that can be converted to single-quoted. Any string that doesn't contain any expression substitutions, or special symbols may be converted.

Example:

# Bad practice
"Hello world"
"Hello \"John Doe\""

A quick-fix to convert a double-quoted string is available. After the quick-fix is applied, the result looks like this:

# Good practice
'Hello world'
'Hello "John Doe"'
"Hello 'John Doe'"

Use the Ignore strings containing single quotes checkbox to ignore strings that require escaping.

Inspired by 'RuboCop'