CODEWITHSUNDEEP
javascriptreactjs
Beginner
Beginner

Reputation: 9095

using variable inside .env file for create react app

using variable inside .env file. In create react app.

I am trying to re use the env variable in other env variables, is this correct of way of doing, but i am not getting the value .

.env

A=hello
B=${A}/new

Upvotes: 2

Views: 1556

Answers (1)

evolon
evolon

Reputation: 1586

It's important to realize that env variables are only available in node environment and not in the browser.

But if you're using create-react-app, It does some tricks for you and simulates the same behavior inside the browser, only if you put the REACT_APP_ prefix before your env variables.

As the create-react-app docs says here:

Note: You must create custom environment variables beginning with REACT_APP_. Any other variables except NODE_ENV will be ignored to avoid accidentally exposing a private key on the machine that could have the same name. Changing any environment variables will require you to restart the development server if it is running.

Upvotes: 2

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