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__s
on April 25, 2020
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A one-line package broke `npm create-react-app`
TypeScript supports 'function f(x: any): x is T' as a way to declare that if f returns true, x may pass as type T
https://www.typescriptlang.org/docs/handbook/advanced-types....
cyral
on April 26, 2020
[–]
This package has an index.d.ts file that utilizes exactly this.
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https://www.typescriptlang.org/docs/handbook/advanced-types....