Firestore increment field

const userRef = db.collection('documents').doc('document_id');
const increment = firebase.firestore.FieldValue.increment(1);

userRef.update({ FieldToIncrease: increment });

Firestore decrement field

const userRef = db.collection('documents').doc('document_id');
const decrement = firebase.firestore.FieldValue.increment(-1);

userRef.update({ fieldToDecrease: decrement });

Similar codes

0 vote95 views1 answer
Create dict of value to index from list python
TypeScript
0 vote117 views1 answer
How to get the sheets no in excel package workbook in c#
TypeScript
2 votes108 views4 answers
How to run resize event only on client side angular
TypeScript
14 votes136 views1 answer
Ngbmodal angular 9 yarn install
TypeScript
0 vote97 views1 answer
Input non-negative decimal in typescript
TypeScript
0 vote113 views2 answers
Bootstrap dropdown menu not showing
TypeScript
0 vote101 views1 answer
Give all element in a list starts with string
TypeScript
2 votes95 views5 answers
Ng class in angular
TypeScript
0 vote145 views1 answer
Typescript checkbox event
TypeScript
0 vote102 views1 answer
Pretty print json file cmd
TypeScript