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Omar Dulaimi
Omar Dulaimi

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How to achieve backward compatibility in your Nodejs code?

To achieve backward compatibility, sometimes we have to write separate code for different π—‘π—Όπ—±π—²π—·π˜€ versions.

This happens as a result of APIs getting deprecated and others emerging as their official replacements.

Fortunately, there are ways to handle this issue. Today I'll be talking about one.

The π—½π—Ώπ—Όπ—°π—²π˜€π˜€ module provides you with the runtime version of your π—‘π—Όπ—±π—²π—·π˜€ that is currently executing your script. With this piece of info, we could conditionally serve/run code based on the version we get.

A popular library called π˜€π—²π—Ίπ˜ƒπ—²π—Ώ makes version number comparisons super simple, hence why it's used here.

If you pay close attention to my posts, you should notice that I didn't write 𝗻𝗼𝗱𝗲:π—½π—Ώπ—Όπ—°π—²π˜€π˜€ this time; since it's a new concept that wasn't available in versions below 8.

Did you learn something new today?

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