Firebase Function onCall 中“数据”的数据类型 function

Question

I thought i had a simple question but it seems to be somewhat harder and the documentation does not help alot.

What exactly is the type of 'data' in "functions.https.onCall((data, context) {});"

I thought it varies between a simple value, a map or a list. But even if i call the function with a map object and try to delete a key from it, it fails because it isn't a map.

It also can't be immutable and casting it to a map doesn't work too.

So whatever it is, i just want to remove a key from it. Does anyone know the datatype so i am able to find the correct function?

Answer 1

As @Delwinn stated out, the 'data' object seems to be a 'json object' (if this is a type in typescript) and not a map.

to delete a value from this object, a plain line like

delete json[key]

will do the job. And yes, 'delete' is written like an operator and not a function.