Insert HTML with React Variable Statements (JSX) [duplicate]

Question

I am building something with React where I need to insert HTML with React Variables in JSX. Is there a way to have a variable like so:

var thisIsMyCopy = '<p>copy copy copy <strong>strong copy</strong></p>';

and to insert it into react like so, and have it work?

render: function() {
    return (
        <div className="content">{thisIsMyCopy}</div>
    );
}

and have it insert the HTML as expected? I haven't seen or heard anything about a react function that could do this inline, or a method of parsing things that would allow this to work.

Answer 1

You can use dangerouslySetInnerHTML, e.g.

render: function() {
    return (
        <div className="content" dangerouslySetInnerHTML={{__html: thisIsMyCopy}}></div>
    );
}

Answer 2

Note that dangerouslySetInnerHTML can be dangerous if you do not know what is in the HTML string you are injecting. This is because malicious client side code can be injected via script tags.

It is probably a good idea to sanitize the HTML string via a utility such as DOMPurify if you are not 100% sure the HTML you are rendering is XSS (cross-site scripting) safe.

Example:

import DOMPurify from 'dompurify'

const thisIsMyCopy = '<p>copy copy copy <strong>strong copy</strong></p>';


render: function() {
    return (
        <div className="content" dangerouslySetInnerHTML={{__html: DOMPurify.sanitize(thisIsMyCopy)}}></div>
    );
}