# `syntax.string_quotes`

String in single quotes or backticks.

Area 2, [Values and types](../topics/values-and-types.md); not declinable; the next step is usually the agent's.

Strings are in double quotes.

```jadpo
type Code = Text {
    pattern: '^[a-z]+$'
}
```

```text
error: Jadpo writes strings in double quotes
 --> main.jadpo:2:14
  |
2 |     pattern: '^[a-z]+$'
  |              ^^^^^^^^^^ write `"`
  reason: Single quotes enclose text in Python, JavaScript and SQL, and a character in Rust, Java, C# and Kotlin, and backticks a template in JavaScript; Jadpo has one kind of string, in double quotes.
  next: Write `"^[a-z]+$"` (agent)
  rule: syntax.string_quotes
  help: https://jadpo.dev/docs/errors/syntax.string_quotes

check failed: 1 error, 1 file
```