1. Predefined Property for All Events

Field NameTypeDescriptionRemarks
$libStringSDK TypeThe value for JD Mini Program SDK is JDMini
$lib_versionStringSDK Version
$app_idStringAppID of the mini program
$manufacturerStringDevice Manufacturer
$osStringOperating System
$os_versionStringOperating System Version
$is_first_dayBooleanWhether it is the first day of visit (value is true from the first visit of a new user until 12 AM of the current day, false after that, indicating that it exists in storage)
$is_login_idBooleanWhether it is a login ID (judged and added when data is stored)
$timezone_offsetNumberTime Zone Offset
$network_typeStringNetwork Type
$urlStringPage URL
$screen_heightNumericScreen Height
$screen_widthNumericScreen Width
$modelStringDevice Model
$browserStringBrowser Name, obtained from UA parsing
$browser_versionStringBrowser Version, obtained from UA parsing