What is the purpose of this file opened when react-native starts?

what"s the use of a beginner react-native who doesn"t quite understand why this file is opened when starting?

Mar.17,2021

this process is used to connect your source code and app, code after the update, the process will help you hot update. Of course, you need to turn on the hot update function on the simulator first

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3855f-2c0fb.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3855f-2c0fb.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?