How to render a multi-line text string in React

Make a new CSS-class

.display-linebreak {
  white-space: pre-line;
}

Display your text with that CSS-class

render() {
  const text="One \n Two \n Three";
  return ( 
     <div className="display-linebreak"> 
        {text} 
     </div>
  );
}

Renders with line-breaks (Sequences of whitespace will collapse into a single whitespace. Text will wrap when necessary). Like this:

One
Two
Three

You may also consider pre-wrap. More info here (CSS white-space Property).