What's the point of all these weird TypeScript types?

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To effectively use TypeScript, you often need to get familiar with some pretty weird type definitions and syntax... but what is it all doing? Do we really need it?

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0:00 Works first try
1:15 as const
2:10 Indexed access type
2:48 tuples
3:20 Casting with keyof
3:35 Indexed access again
3:57 ObservedValueOf

#angular #typescript #rxjs

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