CODEWITHSUNDEEP
mongodbmongoose
Eric
Eric

Reputation: 97

What do I use when I need to add more data into a field that is an array

I have trouble understanding the syntax of updateOne and insertOne. I know if I don't have a field I can use updateOne and use $set to create a field. But I have an example here

    const  listSchema=new mongoose.Schema({
          name:String,
          items:Array
        });
const List=mongoose.model("List",listSchema);

const list =new List({
name: "fruits",
items:[]
    });

so essentially I already made the field, but I would like to add items into list.items array, so in this case do I use update or insert? And can you tell me some general knowledge about when to use insert and when to use update? Thank you!

Upvotes: 0

Views: 34

Answers (1)

Gibbs
Gibbs

Reputation: 22956

You need to learn about CRUD generally.

Insert: Nothing exists, but you need to create them.

Update: exists something, you need to add/modify/remove something.

Let's say, here you have empty items. If you have to add items, it falls under update category. There are many ways to update items in mongo[update, updateOne, updateMany, set-update(aggregate)]

Refer this to push item using mongoose

Upvotes: 1

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