Remove Duplicate Characters In A String Javascript

remove duplicate characters in a string javascript – you will learn how to remove duplicates from an array in JavaScript. Remove duplicates from an array using a Set, Remove duplicates from an array using indexOf() and filter() methods and Remove duplicates from an array using forEach() and include().

remove duplicate characters in a string javascript

Contents

Remove duplicate in a string – javascript

Remove Duplicates from an Array

let userInp = ['A', 'B', 'A', 'C', 'B'];
let uniqueChars = [...new Set(userInp)];

console.log(uniqueChars);

JavaScript Remove non-duplicate characters from string

const userInp = 'pakainfo_v1244565';
const removeNonDuplicate = userInp => {
   const blue_stock = userInp.split("");
   const duplicateArray = blue_stock.filter(el => {
      return blue_stock.indexOf(el) !== blue_stock.lastIndexOf(el);
   });
   return duplicateArray.join("");
};
console.log(removeNonDuplicate(userInp));

how to remove duplicate characters from string in javascript

javascript remove duplicate letters in a string

function removeDuplicateCharacters(string) {
  return string
    .split('')
    .filter(function(item, pos, self) {
      return self.indexOf(item) == pos;
    })
    .join('');
}
console.log(removeDuplicateCharacters('moghvai'));

remove duplicates strig javascript

const blue_stock = [1, 2, [3, 4]];

// To flat single level array
blue_stock.flat();
// is equivalent to
blue_stock.reduce((acc, val) => acc.concat(val), []);
// [1, 2, 3, 4]

// or with decomposition syntax
const flattened = arr => [].concat(...arr);

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remove duplicate characters in a string javascript