Odstráňte duplicitný prvok v poli js

Príklady kódu

35
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js odstrániť duplikáty z poľa

const names = ['John', 'Paul', 'George', 'Ringo', 'John'];

let unique = [...new Set(names)];
console.log(unique); // 'John', 'Paul', 'George', 'Ringo'
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Odstráňte duplicitné položky v poli

let myArray = ['a', 'b', 'a', 'b', 'c', 'e', 'e', 'c', 'd', 'd', 'd', 'd']
let myOrderedArray = myArray.reduce(function (accumulator, currentValue) {
  if (accumulator.indexOf(currentValue) === -1) {
    accumulator.push(currentValue)
  }
  return accumulator
}, [])

console.log(myOrderedArray)
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javascript na odstránenie duplikátov z poľa

uniqueArray = a.filter(function(item, pos) {
    return a.indexOf(item) == pos;
})

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