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Mark Smith
Mark Smith

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My javascript / tech / web development newsletter for 2021-07-10 is out!

In this week’s edition:

Music albums derived from games, software engineering formal methods, the shadow dom, the business of digital transformation

Would love to hear any comments and feedback you have.


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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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