Concatenating variables and strings in React

You’re almost correct, just misplaced a few quotes. Wrapping the whole thing in regular quotes will literally give you the string #demo + {} – you need to indicate which are variables and which are string literals. Since anything inside {} is an inline JSX expression, you can do:

href={"#demo" +}

This will use the string literal #demo and concatenate it to the value of This can then be applied to all strings. Consider this:

var text = "world";

And this:

{"Hello " + text + " Andrew"}

This will yield:

Hello world Andrew 

You can also use ES6 string interpolation/template literals with ` (backticks) and ${expr} (interpolated expression), which is closer to what you seem to be trying to do:


This will basically substitute the value of, concatenating it to #demo. It is equivalent to doing: "#demo" +

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