带有 typeof 函数的 Firebase 推送数据返回错误

Question

Sorry for my English.

I am trying to add a post object, with a func property and a function value:

let ref = firebase.database().ref('posts');
let func = function(){ alert('hi!') }
ref.push({
    author: 'some name',
    func: func,
}); 

But when adding, I get an error:

Uncaught Error: Firebase.push failed: first argument contains undefined in property 'posts.func'`.

Although when I pass the text into the func property I have no error. Please, help.

Answer 1

Realtime Database doesn't support storing function type values. Values must be JSON-compatible: object, array, string, number, boolean, or null.