Answers for "i dont have duplicates but is shows duplicates javascript"

95

js remove duplicates from array

const names = ['John', 'Paul', 'George', 'Ringo', 'John'];

let unique = [...new Set(names)];
console.log(unique); // 'John', 'Paul', 'George', 'Ringo'
Posted by: Guest on March-11-2020
1

javascript check if array has duplicates

function hasDuplicates(array) {
    return (new Set(array)).size !== array.length;
}
Posted by: Guest on July-28-2020

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