Function removeLeadingZero

javascript/0043-multiply-strings.js:37–42

(buffer)

};

var removeLeadingZero = (buffer) => {
    const isLeadZero = buffer[0] === 0;
    if (!isLeadZero) return;

    buffer.shift(); /* Time O(N + M) | Time O(N + M) */
};

var update = (num1, i, num2, j, buffer) => {
    const curPos = i + j;