Why it comes to `SyntaxError: Unexpected token var` in JavaScript?

  • 0
     * @param {number} num
     * @return {number}
    var findComplement = function(num){
      return (
        Math.pow(2, num.toString(2).length) - 1
      ^ num

    But the result is right when I use node@8.5.0 in my PC

Log in to reply

Looks like your connection to LeetCode Discuss was lost, please wait while we try to reconnect.