javascript - Read data from Firebase and put into an array -


i'm building ionic application native google maps , firebase. want load multiple markers on map, , positions of these markers (latitude , longitude) in firebase structure:

are in firebase structure.

so created provider , function getpins() these positions:

import { ... };  @injectable()  public arredoresref:firebase.database.reference;  export class arredoresprovider {      constructor() {         this.arredoresref = firebase.database().ref('/local')     }      getpins(): firebase.database.reference {         return this.arredoresref.child('/local');     }  }

and i'm trying put these positions in array:

import { ... };  @ionicpage({ ... })  @component({ ... })  export class arredorespage {      constructor( ... ) { ... }      ionviewdidenter() {         this.arredoresprovider.getpins().on('value', snapshot => {             this.pins = [];             snapshot.foreach( snap => {                 this.pins.push({                     latitude: snap.val().latitudelocal,                     longitude: snap.val().longitudelocal                 });                 return false             });         });     } }

but it's not working! it's first time working firebase , ionic, i'm confused how firebase read data.

this text useful me, not use firebase data.

finally, apologize bad english!

i have implemented first solution this: get data firebase in ionic 2

essentially, have use list reference , make sure call using options {enablesnapshot: true}. moreover, data in structure not have .latitudelocal property on it. instead, have go further in data structure access these, example, use .foreach statement.


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