react createElement function code example

Example 1: react memo

function MyComponent(props) {
  /* render using props */
}
function areEqual(prevProps, nextProps) {
  /*
  return true if passing nextProps to render would return
  the same result as passing prevProps to render,
  otherwise return false
  */
}
export default React.memo(MyComponent, areEqual);

Example 2: react.createElement

//Below I use the React.createElement() function to create a virtual DOM
//representation of a <li> element node containing a text node of one (a.k.a.,
//React text) and an id of li1.

var reactNodeLi = React.createElement('li', {id:'li1'}, 'one');

Example 3: react.createelement

React.createElement(
  type,
  [props],
  [...children]
)

Example 4: React.createElement

const e = React.createElement;

ReactDOM.render(
  e('div', null, 'Hello World'),
  document.getElementById('root')
);