Odd elements

Given a string, return the letters with an odd-positioned value.

Sample Code:

function oddEle(str) {
// Enter your logic here...
}

Examples:

Input: 'Codetisan'
Output: 'Cdtsn'
Explanation: The position of the output values are 1,3,5,7,9.

Input: 'Javascript'
Output: 'Jvsrp'
Explanation: The position of the output values are 1,3,5,7,9.