如何在i18next中将变量用作键？

Question

I am trying to use a variable as a key for a localisation using i18next . Although, the right strings are returned but the interpolation does not work.

I tried to play with variables and raw strings to see where the issue comes from. I am sure it comes from the use of variables in i18n.t() .

return newChannel.guild.channels.get(config.defaultChannel).send(i18n.t(message.content, message.options));

message value is returned by a function. This is a snippet:

else if (newChannel.name !== oldChannel.name) {
    return message = {
        content: i18n.t('events:channel.update.name.text'),
        options: { oldChannel: `**#${oldChannel.name}**`, newChannel: newChannel, interpolation: { escapeValue: false }}
    };
}

That is the string in the json:

"update": {
    "name": {
        "text": "The text channel {{oldChannel}} is now called {{newChannel}}."
    }
}

It outputs: The text channel is now called .

Answer 1

This snippet looks incorrect:

else if (newChannel.name !== oldChannel.name) {
    return message = {
        content: i18n.t('events:channel.update.name.text'),
        options: { oldChannel: `**#${oldChannel.name}**`, newChannel: newChannel, interpolation: { escapeValue: false }}
    };
}

It should be something more like:

else if (newChannel.name !== oldChannel.name) {
    return message = {
        content: i18n.t('events:channel.update.name.text'),
        options: { oldChannel: oldChannel.name, newChannel: newChannel.name, interpolation: { escapeValue: false }}
    };
}

Note the changes to both variables. Can you explain what you are trying to do in the mappings that makes you feel that you need to do string interpolation with ES6 instead of just using the interpolation that the library itself supports?