Javascript Array intersection

Simple Javascript Array intersection

Example Fiddle

function intersection (...args) {
  if (args.length < 2) return []
  
  const source = args.shift()
  const src = Array.isArray(source) ? source : []
  
  return src.reduce((intersections, value, index, list) => {    
    const intersects = args.reduce((state, array) => {
        return Array.isArray(array) ?
          state && array.indexOf(value) !== -1 :
          state
    }, true)
    
    if (intersects && intersections.indexOf(value) === -1) {
     intersections.push(value)
    }
    
    return intersections
  }, [])
}