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Jan Prazak
Jan Prazak

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Copying objects with Object.assign()

The weird part of Object.assign finally cracked :-) This is a short code snippet which explains how Object.assign() works. There is some console output but everything important is already written in JS code comments.

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typescript

11 Tips That Make You a Better Typescript Programmer

1 Think in {Set}

Type is an everyday concept to programmers, but it’s surprisingly difficult to define it succinctly. I find it helpful to use Set as a conceptual model instead.

#2 Understand declared type and narrowed type

One extremely powerful typescript feature is automatic type narrowing based on control flow. This means a variable has two types associated with it at any specific point of code location: a declaration type and a narrowed type.

#3 Use discriminated union instead of optional fields

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