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Count digits
//nodejs v4.2.6 function count_digits(number) { number = "" + number; var obj = {}; for(var digit of number) { if(obj[digit]) obj[digit] += 1; else obj[digit] = 1; } return obj; } var n = 14576560723341337089; console.log(count_digits(n));
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Rest Params
Accept matching keys in object
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