Is it possible to remove an object from the mainList array?
_id:ObjectId("5fafc5aec2b84c301845c55a"),
username:"test",
mainList:[
{
_id:ObjectId("5fafdf1a5b49510c789af0ae"),
name:"testname",
lastname:"testlastname"
},
{
_id:ObjectId("5fafdf1a5b49510c789af0af"),
name:"testname",
lastname:"testlastname"
}
]
Utilize the $pull operator in MongoDB
{ $pull: { <field1>: <value|condition>, <field2>: <value|condition>, ... } }
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As a newcomer to PHP, I have successfully learned how to upload a file from a list using the following code: var file = e.target.files[0]; alert(file); This code returns an [object File], indicating that the file has been uploaded. Now, my question is: ...