Stefan Baumgartner 3/16/2018

TypeScript and Substitutability

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This article explores TypeScript's type system oddities, specifically why it permits functions with fewer parameters than declared and accepts functions with specific return types when 'void' is expected. It explains these concepts through code examples, highlighting how TypeScript's design as a JavaScript superset enables common JavaScript patterns like omitting unused callback parameters.

TypeScript and Substitutability

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