I created a function that will test to see if a given parameter is a square number.

Read about square numbers here: https://en.wikipedia.org/?title=Square_number

If the number is a square number, it returns true and otherwise false. Negative numbers also return false.

Examples:

isSquare(-12) // => false

isSquare( 5) // => false

isSquare( 9) // => true

isSquare(25) // => true

isSquare(27) // => false

Right now, I am using this method: http://jsfiddle.net/marcusdei/ujtc82dq/5/

But, is there a shorter more cleaner way to get the job done?