Deepfilter

deepfilter.js

function deepFilter (search, arr) {
  if (!search) return arr
  
  const result = []
  
  arr.forEach(element => {
    let temp = []
    let found = false
    
    Object.keys(element).forEach(k => {
      if (String(element[k]).toLowerCase().includes(search.toLowerCase())) {
        found = true
      }
      
      if (Array.isArray(element[k])) {
        temp = deepFilter(search, element[k])
        
        if (temp.length) {
          found = true
        }
      }
      
      if (found) {
        result.push(element)
      }
    })
  })
  
  return [...new Set(result)]
}