How to pass the division operator to the callback value?

Question

JavaScript

const gameOptions = {
    reply_markup: JSON.stringify({
        inline_keyboard:[
            [{text: 'Pi',callback_data: Math.PI.toFixed(2)}],[{text: '/',callback_data: }],

            
        ]
    })
}

How to pass the value of the division operator to the callback_data value?

Answer 1

In InlineKeyboardButton , a string is expected for the field callback_data, so:
callback_data: "/"