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 vote386 views1 answer
Add hsts domain
TypeScript
0 vote358 views4 answers
C++ sort vector of objects by property
TypeScript
0 vote333 views1 answer
Difference in minutes between 2 time inputs laravel
TypeScript
2 votes324 views1 answer
Aws sts assume-role example
TypeScript
0 vote355 views1 answer
Name all the elements of set Red. Use the proper set notation.
TypeScript
2 votes420 views2 answers
Eslint no-unused-vars typescript interface
TypeScript
1 vote314 views1 answer
Typescript add property if not exist, merge if it exists
TypeScript
-1 vote391 views1 answer
Fwrite() expects parameter 2 to be string, array given
TypeScript
0 vote312 views1 answer
Angular build router-outlet not working
TypeScript
2 votes346 views1 answer
Typescript calculate days between dates
TypeScript