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Get the text and add to a array Convert array to set and compare the size Set will have only unique elements (Removes the duplicates) So if length of set and array are different , it means there where duplicate entries in the array. var arr = [55, 44, 65, 55]; var set = new Set(arr); console.log(set.size === arr.length); set.forEach(x => {console.log(x)});...


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