What this snippet does
Intersections are useful for composing capabilities or mixins into a single combined type.
Expected output
1970-01-01T00:00:00.000Z
Why practise typing this
Typing union and intersection types code builds muscle memory for the symbols and indentation TypeScript uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
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- Creating an impossible type intersectionUnion and Intersection Types · beginner
- Defining exact string literalsUnion and Intersection Types · beginner