Function optionalString

projects/runtime-node/src/validation.ts:37–43

(key: string)

}

export function optionalString(key: string): ParamCheck {
    return (record) => {
        const value = record[key]
        if (value !== undefined && typeof value !== "string") return paramsError(`$.${key}`, `${key} must be a string`)
        return null
    }
}

export function optionalStringEnum(key: string, values: readonly string[]): ParamCheck {
    return (record) => {