Defaults for object parameters

[sand eagle]

I am trying to set the parameters to be optional with a default setup, I tried to make this but it shows cannot read properties of undefined (reading 'author')

client.embed = ({
        author = client.user,
    }) => {
        const embed = new EmbedBuilder()
        .setDescription("test")
        if (author) embed.setAuthor({ name: author.username })
        return embed
    }```

[fair spruce]

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