sampleInterface.js

function equalInterface(sample, eq) {
  const type = t => Object.prototype.toString.call(t).slice(8,-1).toLocaleLowerCase()
  debugger
  let isEqual = true
  
  if (type(sample) === 'object') {
    Object.keys(sample).forEach(key => {
      if (type(sample[key]) === 'object') {
        const intoIsEqual = equalInterface(sample[key], eq[key])
        console.log(sample[key], eq[key], intoIsEqual)
        if (!intoIsEqual) {
          isEqual = false
        }
      }
      if (sample[key] !== type(eq[key])) {
        isEqual = false
      }
    })
  }
  
  return isEqual
}

const d = {
  x:1,
  y:3,
  l: {
    e: 2
  }
}

const result = equalInterface({
  x: 'number',
  y: 'number',
  l: {
    e: 'number',
  }
}, d)


console.log(result)