Always verify configuration properties exist before accessing them to prevent runtime errors. Configuration settings may not be available depending on installed plugins, enabled features, or user preferences.
Use appropriate safety patterns:
in operator to check existence: "saml_enabled" in this.siteSettingsthis.site.default_dark_color_scheme?.id > 0this.currentUser?.user_option?.timezone || moment.tz.guess()This prevents crashes when accessing configuration that depends on optional plugins, feature flags, or user-specific settings that may not be present in all environments.
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