how to pass iframe in react component

Question

I am trying to make a simple iframe in my react component that will show a google map location. I am currently hard-coding the src like this

this.state.features.map(function(school){
    return(
        <div>
            {school.name}
            <div>
            <iframe frameBorder="0" style={{ width: "100%", height: "450"}} 
                src="https://www.google.com/maps/embed/v1/place?q=40.7127837,-74.0059413&amp;key=AIzaSyCc3zoz5TZaG3w2oF7IeR-fhxNXi8uywNk">
            </iframe>
            </div>
        </div>
    )
})

which seems to work. However I want to pass the scr using a react variable so I am doing something like this

const MY_API = AIzaSyCc3zoz5TZaG3w2oF7IeR-fhxNXi8uywNk

let _url = "https://www.google.com/maps/embed/v1/place?q=40.7127837,-74.0059413&key="+MY_API;

and then passing the src dynamically like this

<iframe frameBorder="0" style={{ width: "100%", height: "450"}} 
        src={_url}>
</iframe>

but now I get the following error

The Google Maps API server rejected your request. Invalid request. Unexpected parameter 'amp%3Bkey'

Not sure what's the error message is about. help please.

Answer 1

Try this (I am unable to comment on questions yet)

const MY_API = 'AIzaSyCc3zoz5TZaG3w2oF7IeR-fhxNXi8uywNk'
let _url = `https://www.google.com/maps/embed/v1/place?key=${MY_API}&q=40.7127837,-74.0059413`

The above is using ES6 template literals