isNonNullableStringSchema
Determines whether a given JSON schema represents a non-nullable string type.
Validates that the schema's type property is set to 'string' (not an array),
indicating it describes non-nullable string values.
Signature
const isNonNullableStringSchema: (schema: UnknownSchema) => schema is NonNullableStringSchema
Parameters
| Name | Type | Description |
|---|---|---|
schema | - | The JSON schema object to inspect |
Returns
Type-safe boolean indicating whether the schema is a non-nullable StringSchema
Examples
Example 1
isNonNullableStringSchema({ type: 'string' }); // true
isNonNullableStringSchema({ type: ['string', 'null'] }); // false
isNonNullableStringSchema({ type: 'number' }); // false
Playground
isNonNullableStringSchema({ type: 'string' }); // true isNonNullableStringSchema({ type: ['string', 'null'] }); // false isNonNullableStringSchema({ type: 'number' }); // false