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Page 1 of 1 (2 articles)

Type checking in JavaScript: typeof and instanceof operators

11/24/2020 • EN

Type checking in JavaScript: typeof and instanceof operators

Explains how to use JavaScript's typeof and instanceof operators for type checking, including quirks like typeof null.

Instanceof JavaScript Operators type checking Typeof

Dmitri Pavlutin

Type Checking in JavaScript is Slightly Screwed

12/3/2019 • EN

Type Checking in JavaScript is Slightly Screwed

Explains the confusing edge cases and pitfalls of JavaScript's typeof and instanceof operators for type checking, with practical workarounds.

Dynamic Typing Instanceof JavaScript type checking Typeof

Dmitri Pavlutin