button action in react js code example

Example 1: react why onclick property function trigger without click

change:
  <button type="button" onClick={this.myFunction(argument)}> myButton </button>
  
to this: 
  <button type="button" onClick={this.myFunction.bind(this, argument)}> myButton </button>

Example 2: react event listener

onClick onContextMenu onDoubleClick onDrag onDragEnd onDragEnter onDragExit
onDragLeave onDragOver onDragStart onDrop onMouseDown onMouseEnter onMouseLeave
onMouseMove onMouseOut onMouseOver onMouseUp