React onClick - pass event with parameter

Without Parameter

function clickMe(e){
  //e is the event
}

<button onClick={this.clickMe}></button>

With Parameter

function clickMe(parameter){
  //how to get the "e" ?
}
<button onClick={() => this.clickMe(someparameter)}></button>

I want to get the event. How can I get it?

Try this:

<button 
   onClick={(e) => {
      this.clickMe(e, someParameter);
   }}
>
Click Me!
</button>

And in your function:

function clickMe(event, someParameter){
     //do with event
}

With the ES6, you can do in a shorter way like this:

const clickMe = (parameter) => (event) => {
    // Do something
}

And use it:

<button onClick={clickMe(someParameter)} />