Home > @datadog/browser-rum > CommonProperties > _dd
Internal properties
Signature:
readonly _dd: {
readonly format_version: 2;
session?: {
plan?: 1 | 2;
readonly session_precondition?: 'user_app_launch' | 'inactivity_timeout' | 'max_duration' | 'background_launch' | 'prewarm' | 'from_non_interactive_session' | 'explicit_stop';
[k: string]: unknown;
};
readonly configuration?: {
readonly session_sample_rate: number;
readonly session_replay_sample_rate?: number;
[k: string]: unknown;
};
readonly browser_sdk_version?: string;
[k: string]: unknown;
};