Exclude specific fields when updating a document in Firebase using the update()

Currently, I am storing a class in Firebase by using the update() function.

Is there a way to stop specific fields (identified by name) of the object from being saved to the Firebase database?

It's similar to how we use the transient keyword in Java.

I'm looking for a solution that doesn't involve utilizing the JS delete operator.

Answer №1

When using the update() function in Firebase, it will modify the value of each specified property or path in the object you provide. If there are certain properties you don't want to update, simply exclude them from the object.

If you need a new object that is a copy of an existing one but with some fields removed:

  • Clone a JavaScript object while excluding a specific key

Alternatively:

var obj = { a: 1, b: 2, c: 3, d: 4, e: { f: 5 } }
var updates = {};
Object.keys(obj).forEach((key) => {
  if (key !== "c") updates[key] = obj[key];
});
ref.update(updates);

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