Objects are not valid as a React child

Question

I am getting an below error. I can see that I have to return array instead of object. But I am really not sure how to fix it. Thanks in advance

Object

Answer 1

timeElapsed is an object, React doesn't know how to render this:

  
    {this.state.timeElapsed}
  

Try changing this.state.timeElapsed for a string like for example:

  
    {this.state.timeElapsed.toString()}