let token = 'буковы'
const VkBot = require('node-vk-bot-api'),
      Markup = require('node-vk-bot-api/lib/markup'),
      api = require('node-vk-bot-api/lib/api'),
      Scene = require('node-vk-bot-api/lib/scene'),
      Context = require('node-vk-bot-api/lib/context'),
      bot = new VkBot(token)

bot.command(/^eval/i, (data) => {
let text = b.replace(/eval/i, '')
data.reply(eval(text))
})

bot.command(/ping/i, (data) => {)
data.reply('pong')
})

bot.startPolling()