ES6 null-undefined-''-[]-{} type check

isEmpty.js

const isEmpty = value => {
  if (typeof value === 'number') return false
  else if (typeof value === 'string') return value.trim().length === 0
  else if (Array.isArray(value)) return value.length === 0
  else if (typeof value === 'object') return value == null || Object.keys(value).length === 0
  else if (typeof value === 'boolean') return false
  else return !value
}