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Size: a a a
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JSON.stringify(arr1) === JSON.stringify(arr2)
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arraysAreEqual([NaN], [NaN])
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const arraysAreEqual = (...arrays) =>
arrays.map(array => array.length).every((el, _, src) => el === src[0]) &&
arrays.every(
(array, _, srcArrays) => array.every(
(_, id, srcValues) => srcValues[id] === srcArrays[0][id] || isNan(srcValues[id]) && isNan(srcArrays[0][id])
)
);
типа так?