Is console app parameter in react.js code outside serverless.yaml?

Question

I want to print an env variable to console.

I added following veriables in parameters of Serverless app console

in dev: "TESTNAME" : "dev test name"
in prod: "TESTNAME" : "prod test name"

And in js file in my React.js project, I tried

console.log(process.env.TESTNAME);

But it returns nothing.

How come it doesn't work?

user_985832 · Answer

Adding additional .env files like .env.dev .env.prod solved.