.on("child_added",function(data) { console.log(data.val().name); }); This would return all authors to me ordered by author name and then continue to send any updates to that data in realtime. When querying Firebase Realtime Database, you can combine this type of search function, cal...
You must provide theFirebase database URLto query Firebase Realtime Database. Query the database To query the RealtimeDB, create a query and select your Firebase resource. Then set: Service typetoRealtime Database. Action typetoQuery Database. YourDatabaseReference. Configuring the database...
问firebase queryendingatValue("")始终返回数据库中的第一个子级EN我正在尝试使用firebase查询进行关键字...
database Firebase firebase realtime storage performance remote-config google-wombot •11.4.0•17 days ago•6,177dependents•Apache-2.0published version11.4.0,17 days ago6177dependentslicensed under $Apache-2.0 9,555,240 @sanity/generate-help-url ...
fireSQL = new FireSQL(firebase.firestore()); const cities$ = fireSQL.rxQuery(` SELECT city, category, AVG(price) AS avgPrice FROM restaurants WHERE category IN ("Mexican", "Indian", "Brunch") GROUP BY city, category `); cities$.subscribe(results => { /* REALTIME AGGREGATED DATA! *...
Steps to Reproduce dependencies: firebase_analytics: ^0.2.0 firebase_auth: ^0.4.0 google_sign_in: ^2.0.0 firebase_database: ^0.3.1 firebase_messaging: ^0.1.0 firebase_core: ^0.0.2 flutter_facebook_connect: ^0.0.3 Running below code @over...
push({ name: 'David', age: 27, location: 'SF' }); // Find records by multiple fields // returns a Firebase Database ref const queriedDbRef = querybaseRef .where({ name: 'David', age: 27 }); // Listen for realtime updates queriedDbRef.on('value', snap => console.log(snap)...
问快速Firebase -.queryStarting(atValue:)和.queryEnding(atValue:)返回所有子级EN根据指定节点ID获取...
import firebase from 'firebase/app'; import { getFirestore, serverTimestamp, collection, writeBatch, doc, setDoc, updateDoc, } from 'firebase/firestore'; import Observer from 'firestore-query-observer'; firebase.initializeApp(firebaseConfig); const CITIES_LAST_SYNC_KEY = 'citites-last-sync'; /...
Storage, Data & Firebase Files, PDFs, Downloads Audio & Video Location & Maps Camera & QR Sensors App Logic & Native Code Bluetooth LE Charts Web View Ads, Analytics, Notifications & more REST Service Connectivity & Networking Shaders & Graphical Effects ...