Използвайте разрешаване, за да премахнете дубликат на масива

Примерен код

2
0

изтриване на дублиращи от масив

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

console.log(uniqueChars);

output:
[ 'A', 'B', 'C' ]
0
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изтриване на масива дубликати.филтър

// removeDuplicates ES6
const uniqueArray = oldArray.filter((item, index, self) => self.indexOf(item) === index);

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