How to remove duplicates from an array

Question

Anónimo · Accepted Answer

RUBY :

a = [1, 2, 3, 1, 2, 3, 5, 6, 1]
b = a.find_all do |e| a.count(e) == 1 end
print b

Output: [5, 6]

Anónimo · Answer

s = 'aaabbbbbaccc'
array = s.split('')
hash = {}
newArray = []
array.forEach(val => {
  if(!Object.keys(hash).includes(val)){
    hash[val] = ''
    newArray.push(val)
  }
})
newArray

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