JavaScript - Easy to Understand Solution ✅✅
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Calculator {\n  \n  /** \n   * @param {number} value\n   */\n  constructor(value) {\n      this.sum = value;\n  }\n\n  /** \n   * @param {number} value\n   * @return {Calculator}\n   */\n  add(value){\n      this.sum += value;\n  }\n\n  /** \n   * @param {number} value\n   * @return {Calculator}\n   */\n  subtract(value){\n      this.sum -= value;\n  }\n\n  /** \n   * @param {number} value\n   * @return {Calculator}\n   */  \n  multiply(value) {\n      this.sum *= value;\n  }\n\n  /** \n   * @param {number} value\n   * @return {Calculator}\n   */\n  divide(value) {\n      if(value==0){\n          throw new Error("Division by zero is not allowed");\n      }\n      this.sum /= value;\n  }\n  \n  /** \n   * @param {number} value\n   * @return {Calculator}\n   */\n  power(value) {\n      this.sum **= value;\n  }\n    \n  /** \n   * @return {number}\n   */\n  getResult() {\n      return this.sum;\n  }\n}\n```
['JavaScript']