developmentChains.includes is not a function

[wikisi9]

Hey folks. I keep running into this same "developmentChains.includes is not a function" error. I got the script to work just fine, until I added this part...

I searched here first, but didn't find anything. Then I googled the error. Someone said that error happens when the includes() method is called on a value that is not of type string or array. So I console logged 'network.name', and it returned the string 'goerli'. So I guess that wasn't it. Then I deleted the artifacts, cache and node_modules folder and ran yarn install. That didn't change anything. Not sure what else to try. Help?

[AmitKochar1]

Please, show your helper-hardhat file as well.

[wikisi9]

[alymurtazamemon]

@wikisi9 Better is to leave your repo link so we can see the code.

[wikisi9]

Sorry it took so long. Had to figure out how to push code to github first.
Here's the link https://github.com/wikisi9/hardhat-fund-me-fcc

[wikisi9]

I changed developmentChains.includes(network.name) to developmentChains.toString().includes(network.name) and now when I run the command "yarn hardhat test --network goerli", it works for FundMe-staging-test.js.

But when I make the same change, add .toString(), in the FundMe-test.js, I get this..

And without the .toString() it gives me the error: developmentChains.includes is not a function

[wikisi9]

I use developmentChains.includes in more than one script. Why does it work in one and not the other?? This is getting pretty damn frustrating!

[wikisi9]

Fixed it.

Changed const developmentChains = require("../../helper-hardhat-config") to const { developmentChains } = require("../../helper-hardhat-config")

[TheDude-dev]

Hi @wikisi9 ! Glad you fixed it. You should mark the issue as answered though, in case someone runs into the same error or just to know you no longer need help.

[wikisi9]

Done. These stupid { } brackets set me back 2 days. Ugh!