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return first unique element in array javascript

Alive Ape answered on August 23, 2022 Popularity 5/10 Helpfulness 2/10

answer return first unique element in array javascript

return first unique element in array javascript

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// take string and return first character that only has one instance

const uniqueFirstChar = (string) => {
  // create array of characters
  let charArray = Array.from(string);
  // check for repeating values and create new unique array
  const uniqueArray = charArray.filter((char) => {
    return charArray.lastIndexOf(char) == charArray.indexOf(char);
  });
  // check for edge case and return first item in unique array
  !uniqueArray[0]
    ? console.log("No characters to return")
    : console.log(uniqueArray[0]);
};

uniqueFirstChar("barbara");

Popularity 5/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: element javascript return unique

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Contributed on Aug 23 2022

Alive Ape

0 Answers Avg Quality 2/10

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return first unique element in array javascript

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