roblox-ts•3mo ago

lapis readonly

I'm trying to create a wrapper function that simplifies reading and writing player data. However, I'm encountering an error that says: "attempt to modify readonly table." Lapis is returning the data as a readonly table, so I need a way to safely create a mutable copy of this data, modify it, and then send it back to be written. How can I do this properly?

public withReadData(updater: (data: PlayerData) => PlayerData): void {
    const current = this.readData();
    const mutableData // make mutable data here somehow?
    const updated = updater(current);
    this.writeData(updated);
}

public withReadData(updater: (data: PlayerData) => PlayerData): void {
    const current = this.readData();
    const mutableData // make mutable data here somehow?
    const updated = updater(current);
    this.writeData(updated);
}

playerEntity.withReadData((data) => {
    data.inventory.items.push(blah);
    return data;
});

playerEntity.withReadData((data) => {
    data.inventory.items.push(blah);
    return data;
});

Sorry if this is a silly question.

3 Replies

glenacusOP•3mo ago

I guess I can make a deep clone of data.

Unknown User•3mo ago

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glenacusOP•3mo ago

just document.read() and returns it The ts version of lapis read returns a Readonly<T>

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lapis readonly

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