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('baraban'));remove repeated characters from a string in javascript
const unrepeated = (str) => [...new Set(str)].join('');
unrepeated("hello"); //➞ "helo"
unrepeated("aaaaabbbbbb"); //➞ "ab"
unrepeated("11112222223333!!!??"); //➞ "123!?"remove duplicates strig javascript
const arr = [1, 2, [3, 4]];
// To flat single level array
arr.flat();
// is equivalent to
arr.reduce((acc, val) => acc.concat(val), []);
// [1, 2, 3, 4]
// or with decomposition syntax
const flattened = arr => [].concat(...arr);Copyright © 2021 Codeinu
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