title: Go lang how to check if float value is actually int
body: <pre><code>func isFloatInt(floatValue float64) bool{
  //What's the implementation here?
  
  }
  </code></pre>
  
  <p><b>Test cases:</b> <br>
  input: 1.5 output: false;<br>
  input: 1 output: true;<br>
  input:1.0 output: true;<br></p>