add object data to existing firebase document

Question

I’m having problems finding the the right approach to adding new data to a Firebase document (using JavaScript)

My document structure is as follows..

I want to be able to add a new child (as in kids) and a new class (as in school classes) objects to the children and classes arrays. I tried update, but that just overwrote existing data.

Doug Stevenson · Accepted Answer · 2019-06-14 12:20:42Z

2

You can use FieldValue.arrayUnion() to add a new element to an array field of a document.

answered Jun 14, 2019 at 12:20

Doug Stevenson

321k37 gold badges458 silver badges474 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

add object data to existing firebase document

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related