Adding script tag to React/JSX

Question

I have a relatively straightforward issue of trying to add inline scripting to a React component. What I have so far:

\'use strict\';

import \'../../styles/         


        

Answer 1

My favorite way is to use React Helmet – it's a component that allows for easy manipulation of the document head in a way you're probably already used to.

e.g.

import React from "react";
import {Helmet} from "react-helmet";

class Application extends React.Component {
  render () {
    return (
        <div className="application">
            <Helmet>
                <script src="https://use.typekit.net/foobar.js"></script>
                <script>try{Typekit.load({ async: true });}catch(e){}</script>
            </Helmet>
            ...
        </div>
    );
  }
};

https://github.com/nfl/react-helmet

Answer 2

You can use npm postscribe to load script in react component

postscribe('#mydiv', '<script src="https://use.typekit.net/foobar.js"></script>')

Answer 3

Further to the answers above you can do this:

import React from 'react';

export default class Test extends React.Component {
  constructor(props) {
    super(props);
  }

  componentDidMount() {
    const s = document.createElement('script');
    s.type = 'text/javascript';
    s.async = true;
    s.innerHTML = "document.write('This is output by document.write()!')";
    this.instance.appendChild(s);
  }

  render() {
    return <div ref={el => (this.instance = el)} />;
  }
}

The div is bound to this and the script is injected into it.

Demo can be found on codesandbox.io

Answer 4

If you need to have <script> block in SSR (server-side rendering), an approach with componentDidMount will not work.

You can use react-safe library instead. The code in React will be:

import Safe from "react-safe"

// in render 
<Safe.script src="https://use.typekit.net/foobar.js"></Safe.script>
<Safe.script>{
  `try{Typekit.load({ async: true });}catch(e){}`
}
</Safe.script>

Answer 5

for multiple scripts, use this

var loadScript = function(src) {
  var tag = document.createElement('script');
  tag.async = false;
  tag.src = src;
  document.getElementsByTagName('body').appendChild(tag);
}
loadScript('//cdnjs.com/some/library.js')
loadScript('//cdnjs.com/some/other/library.js')