A few lines of JavaScript


  • 0
    var plusOne = function(digits) {
        for (let i = digits.length - 1; i >= 0; i--) {
            digits[i] = (digits[i] + 1) % 10;
            if (digits[i]) return digits;
        }
        digits.unshift(1);
        return digits;
    };
    

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