PROSAGA码农传奇-Angular-this.db.object（）.push不是Ionic中的函数

<div class =“post-text”itemprop =“text”>
  
     <code>
 object()
 </code>
     是一种方法
     <code>
 AngularFireDatabase
 </code>
     类：
  
   <pre>
 <code>
 object<T>(pathOrRef: PathReference): AngularFireObject<T> {
 const ref = getRef(this.database, pathOrRef);
 return createObjectReference<T>(ref, this);
 }

</code>
 </pre>
  
    <a href="https://github.com/angular/angularfire2/blob/master/src/database/database.ts#L37" rel="nofollow noreferrer">
      https://github.com/angular/angularfire2/blob/master/src/database/database.ts#L37
    </A>
  
  
    因为它是类型
     <code>
 AngularFireObject
 </code>
     那么你可以使用以下方法：
  
   <pre>
 <code>
 method

set(value: T)       Replaces the current value in the database with the new value specified as the parameter. This is called a destructive update, because it deletes everything currently in place and saves the new value.
update(value: T)    Updates the current value with in the database with the new value specified as the parameter. This is called a non-destructive update, because it only updates the values specified.
remove()            Deletes all data present at that location. Same as calling set(null).

</code>
 </pre>
  
    <a href="https://github.com/angular/angularfire2/blob/master/docs/rtdb/objects.md#api-summary" rel="nofollow noreferrer">
      https://github.com/angular/angularfire2/blob/master/docs/rtdb/objects.md#api-summary
    </A>
  
  
    因此，没有
     <code>
 push()
 </code>
     方法。
  
  <HR />
  
    在您的代码中，您似乎只想添加数据，因此您可以使用
     <code>
 push()
 </code>
     在里面
     <code>
 AngularFireList
 </code>
    。例：
  
   <pre>
 <code>
 const itemsRef = db.list('items');
itemsRef.push({ name: newName });

</code>
 </pre>
  
    阅读文档：
  
  
    <a href="https://github.com/angular/angularfire2/blob/master/docs/rtdb/lists.md" rel="nofollow noreferrer">
      https://github.com/angular/angularfire2/blob/master/docs/rtdb/lists.md
    </A>
  
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this.db.object（ ）.push不是Ionic中的函数

this.db.object（）.push不是Ionic中的函数