When I entered the information, I filled in the digital telephone number with no brackets in the middle, and then the brackets appeared when I displayed it.
But I looked for it and didn’t find it with brackets (maybe not ..).
The database used is Mongodb. This set of projects was originally from abroad. Is this a factor?
Angularjs is mainly used for the framework. Ask the great god for some advice.
It should be a problem with the database.
Look at the type of field where the phone number is stored. .