evaluate-reverse-polish-notation.js

/**
 * Source:  https://leetcode.com/problems/evaluate-reverse-polish-notation/
 * Tags:    [Stack]
 * Level:   Medium
 * Title:   Evaluate Reverse Polish Notation
 * Auther:  @imcoddy
 * Content: Evaluate the value of an arithmetic expression in Reverse Polish Notation.
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 * Valid operators are +, -, *, /. Each operand may be an integer or another expression.
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 * Some examples:
 *
 *   ["2", "1", "+", "3", "*"] -> ((2 + 1) * 3) -> 9
 *   ["4", "13", "5", "/", "+"] -> (4 + (13 / 5)) -> 6
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 *                   Show Similar Problems
 *
 *
 *                      (M) Basic Calculator
 *
 *                      (H) Expression Add Operators
 */

/**
 * @param {string[]} tokens
 * @return {number}
 */
var evalRPN = function(tokens) {

};