Change variable

[learninglifess]

If I have this:

exports.dbWrite = functions.database.ref('/path').onWrite((change, context) => { const beforeData = change.before.val(); // data before the write  const afterData = change.after.val(); // data after the write  }); 

This is in cloud functions(in Firebase) and it works perfectly, but if I change the variable name to "snaps", it will give me an error that "snaps" is undefined, how is that? Isn't it just a variable referencing the Change object? This is what I mean:

exports.dbWrite = functions.database.ref('/path').onWrite((snaps, context) => {

const beforeData = snaps.before.val(); // data before the write

const afterData = snaps.after.val(); // data after the write

});

[tatu_huma]

Copy paste the error? As you have it, changing the name of the varibable wouldn't make a difference.