Javascript Firebase,将快照数据存储到数组变量
我可以使用('child_added',function())上的Javascript Firebase,将快照数据存储到数组变量,javascript,angularjs,firebase,firebase-realtime-database,Javascript,Angularjs,Firebase,Firebase Realtime Database,我可以使用('child_added',function())上的ref.child('user')。将用户内部的内容存储到数组变量中 这就是我的例子 $scope.samplearray = []; ref.child('user').on("child_added", function(snapshot) { $scope.samplearray.name = snapshot.val().name; $scope.samplearray.age = snapshot.val().a
ref.child('user')。将用户内部的内容存储到数组变量中
这就是我的例子
$scope.samplearray = [];
ref.child('user').on("child_added", function(snapshot) {
$scope.samplearray.name = snapshot.val().name;
$scope.samplearray.age = snapshot.val().age;
});
然后使用该数组在my html中显示它,Firebase数据库中的子事件是异步触发的,这在Angular 1.x中是一个开箱即用的问题。您需要在添加到数组后直接触发$digest
循环,或者使用AngularFire
普通SDK方法
function MyController($scope) {
var ref = firebase.database.ref('items');
var items = [];
ref.on('child_added', function(snap) {
$scope.$evalAsync(function() {
var item = snap.val();
// use a super private property to keep around the key
item.__key = snap.key;
items.push(item);
});
});
}
function MyController($scope, $firebaseArray) {
var ref = firebase.database.ref('items');
// Handles all child events: added, removed, changed, moved
$scope.items = $firebaseArray(ref);
}
角射进近
function MyController($scope) {
var ref = firebase.database.ref('items');
var items = [];
ref.on('child_added', function(snap) {
$scope.$evalAsync(function() {
var item = snap.val();
// use a super private property to keep around the key
item.__key = snap.key;
items.push(item);
});
});
}
function MyController($scope, $firebaseArray) {
var ref = firebase.database.ref('items');
// Handles all child events: added, removed, changed, moved
$scope.items = $firebaseArray(ref);
}
我的回答有用吗?