function to click a button reactjs code example

Example 1: handling event in jsx

//Event hadling in react
function ActionLink() {
  function handleClick(e) {
    e.preventDefault();
    console.log('The link was clicked.');
  }

  return (
    <a href="#" onClick={handleClick}>
      Click me
    </a>
  );
}

Example 2: 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>