31 lines
864 B
Markdown
31 lines
864 B
Markdown
---
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title: Use the .env File
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---
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## Use the .env File
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<!-- The article goes here, in GitHub-flavored Markdown. Feel free to add YouTube videos, images, and CodePen/JSBin embeds -->
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We can use the .toUpperCase() method to make a string all caps, such as:
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```javascript
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var response = "Hello World".toUpperCase(); // now becomes "HELLO WORLD"
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```
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All we need to do now is check what the value of the environment variable is, which you can do like:
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```javascript
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if (process.env.VAR_NAME === "allCaps") {
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response = "Hello World".toUpperCase();
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} else {
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response = "Hello World";
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}
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});
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```
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<a href='https://github.com/freecodecamp/guides/tree/master/src/pages/certifications/apis-and-microservices/basic-node-and-express/use-the-.env-file/index.md' target='_blank' rel='nofollow'>Help our community expand these hints and guides</a>.
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