[Home](./index.md) > [@digitalpersona/core](./core.md) > [Question](./core.question.md) ## Question class Security question data. Signature: ```typescript export declare class Question ``` ## Constructors | Constructor | Modifiers | Description | | --- | --- | --- | | [(constructor)(number, lang\_id, sublang\_id, keyboard\_layout, text)](./core.question.(constructor).md) | | Constructs a security question. | ## Properties | Property | Modifiers | Type | Description | | --- | --- | --- | --- | | [keyboard\_layout](./core.question.keyboard_layout.md) | | number | A keyboard layout for the answer. | | [lang\_id](./core.question.lang_id.md) | | number | A question language ID. | | [number](./core.question.number.md) | | QuestionNumber | An index of a question in a question list. | | [sublang\_id](./core.question.sublang_id.md) | | number | A question sublanguage ID. | | [text](./core.question.text.md) | | string | undefined | A text of the security question (only when === [QuestionType.Custom](./core.questiontype.custom.md)) | | [type](./core.question.type.md) | | QuestionType | Security question type | | [version](./core.question.version.md) | | | Version info. | ## Methods | Method | Modifiers | Description | | --- | --- | --- | | [fromJson(json)](./core.question.fromjson.md) | static | Creates a security question from a plain JSON object. |