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Ты написал может и первый вариант может и второй, круто если один все делает
Size: a a a
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const array = [2, 2, 2, 6, 8, 8, 10, 10, 10];
const newArr = {};
const duplicates = [];
for (let item of array) {
if (newArr[item] !== undefined) {
newArr[item]++
} else {
newArr[item] = 1
}
}
for (let [key, value] of Object.entries(newArr)) {
if (value > 1)
duplicates.push(key)
}
console.log(duplicates);
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const array = [2, 2, 2, 6, 8, 8, 10, 10, 10];
const newArr = {};
const duplicates = [];
for (let item of array) {
if (newArr[item] !== undefined) {
newArr[item]++
} else {
newArr[item] = 1
}
}
for (let [key, value] of Object.entries(newArr)) {
if (value > 1)
duplicates.push(key)
}
console.log(duplicates);
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