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fix: use globalThis over global (#4448)

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Simen Bekkhus
2022-03-14 21:39:59 +01:00
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parent 90ae8466a2
commit b13640a8fb
1 changed files with 2 additions and 2 deletions
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content/blog/2022-03-08-react-18-upgrade-guide.md
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@@ -227,11 +227,11 @@ When you first update your tests to use `createRoot`, you may see this warning i
> The current testing environment is not configured to support act(...)
To fix this, set `global.IS_REACT_ACT_ENVIRONMENT` to `true` before running your test:
To fix this, set `globalThis.IS_REACT_ACT_ENVIRONMENT` to `true` before running your test:
```js
// In your test setup file
global.IS_REACT_ACT_ENVIRONMENT = true;
globalThis.IS_REACT_ACT_ENVIRONMENT = true;
```
The purpose of the flag is to tell React that it's running in a unit test-like environment. React will log helpful warnings if you forget to wrap an update with `act`.