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JavaScript JavaScript Array Iteration Methods Combining Array Methods Chaining Array Methods

Posted by Bert Witzel
.a{fill-rule:evenodd;}techdegree seal-36
Bert Witzel
Full Stack JavaScript Techdegree Graduate 27,918 Points

Another way to remove duplicates from an array

const numbers = [1, 1, 2, 3, 4, 3, 5, 5, 6, 7, 3, 8, 9, 10];
const unique = [...new Set(numbers)];
console.log(unique);

treehouse:~/workspace$ node iteration.js                              
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ]
Mark Casavantes
Mark Casavantes
2,880 Points
Mark Casavantes
Mark Casavantes
2,880 Points

Hello Bert,

I do not know if this is what you were thinking of.

let chars = [
  "1",
  "1",
  "2",
  "3",
  "4",
  "3",
  "5",
  "5",
  "6",
  "7",
  "3",
  "8",
  "9",
  "10"
];
let uniqueChars = [...new Set(chars)];

console.log(uniqueChars);

1 Answer

Bert Witzel
.a{fill-rule:evenodd;}techdegree seal-36
Bert Witzel
Full Stack JavaScript Techdegree Graduate 27,918 Points

Looks good!

Mark Casavantes
Mark Casavantes
2,880 Points
Mark Casavantes
Mark Casavantes
2,880 Points

Hello Bert,

I am using strings, I changed how the array is presented, I changed const to let. I was not sure what you were looking for. I was trying to be helpful. My solution is a different way to remove duplicates from an array.