To implement HTML entity decode in React, we can use the he library.

To install it, we run

npm install he

Then we use it by writing

import he from "he";

export class FullInfoMedia extends React.Component {
  render() {
    const renderHTML = (escapedHTML: string) =>
      React.createElement("div", {
        dangerouslySetInnerHTML: { __html: escapedHTML },
      });

    return (
      <div>
        <div className="about-title">
          <div className="container">
            <div className="row">
              <img className="center-block" src={this.props.about.image} />
              <h2>{this.props.about.title}</h2>
              {he.decode(this.props.about.body)}
            </div>
          </div>
        </div>
      </div>
    );
  }
}

to call he.decode to decode the this.props.about.body string’s HTML entity values by returning a new string with the decoded value.