如何使用 React 显示 html 实体？

Question

I am wanting to show the 'cubic' html entity (superscript 3). I am doing like this:

const formatArea = function(val){
    return val + " ft³";
}

where formatArea is being called from inside the component':

render(){
    return (
        <div>
            {formatArea(this.props.area)}
        </div>
    );
}

but, the browser is showing it as ft³

Answer 1

Another option is to use fromCharCode method:

const formatArea = (val) => {
    return val + ' ft' + String.fromCharCode(179);
}

Answer 2

Found this way using JSX:

const formatArea = (val) => {
    return (<span>{val}&nbsp;ft<sup>3</sup></span>);
}

Answer 3

New way using React's fragments : <>&sup3;</> .

In your case it can be:

const formatArea = function(val){
    return <>{val + ' '}&sup3;</>
}

Answer 4

• Method 1

  const formatArea = val => <div>{val} ft{'³'}</div>

• Method 2

  const formatArea = val => <div>{val} ft{'\³'}</div>

• Method 3: fromCharCode

  const formatArea = val => <div>{val} ft{String.fromCharCode(parseInt('B3', 16))}</div>

• Method 4

  const formatArea = val => <div>{val} ft{String.fromCharCode(179)}</div>

• Method 5: HTML Codes

  const formatArea = val => <div>{val} ft&sup3;</div>

• Method 6

  const formatArea = val => <div>{val} ft&#179;</div>

• Method 7

  const formatArea = val => <div>{val} ft<sup>3</sup></div>

Then you can render it:

render() {
  return (
    {formatArea(this.props.area)}
  )
}

Answer 5

You can get that using dangerouslySetInnerHTML feature of jsx.

Another way would be use correspond unicode character of html entity and just use as normal string.

 const formatArea = function(val){ return val + " ft&sup3;"; } const Comp = ({text}) => ( <div> <div dangerouslySetInnerHTML={{__html: `${text}`}} /> <div>{'53 ft\³'}</div> </div> ); ReactDOM.render( <Comp text={formatArea(53)} /> , document.getElementById('root') );

 <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script> <div id="root"></div>

Answer 6

const formatArea = function(val){
  return <>{val} ft<span>&sup3;</span></>;
}

render(){
    return (
        <div>
            {formatArea(this.props.area)}
        </div>
    );
}

Demo