# 6 examples of 'addition of two numbers in javascript' in JavaScript

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``16function addTwo(number)17{18    return add(number, 2);19}``
``1export function addStrings(num1, num2) {2  let [i, j] = [num1.length - 1, num2.length - 1];3  let ans = '';4  let carry = 0;56  for (; i &gt;= 0 || j &gt;= 0 || carry === 1; i--, j--) {7    const sum = ~~num1[i] + ~~num2[j] + carry;8    ans = (sum % 10) + ans;9    carry = ~~(sum / 10);10  }1112  return ans;13}``
``10function plus (num) { 11  return function () {12    count += num;13  };14}``
``15function add(num1, num2) {16  const cardinal = 10 ** 10;17  return Math.round((num1 + num2) * cardinal) / cardinal;18}``
``9function add(a, b, c, d){10    return a + b + c + d;11}``
``107function two(num) {108  if (num &lt; 10)109    return '0' + num;110  else111    return num;112}``