You Don't Know JS: this & Object Prototypes

The "You Don't Know JS" series takes a closer look at the features of JavaScript that developers find confusing, and therefore avoid, or use incorrectly. This book focuses on the "this" structure in JavaScript, which should be a convenience for developers, but often acts differently than they expect [...]
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The "You Don't Know JS" series takes a closer look at the features of JavaScript that developers find confusing, and therefore avoid, or use incorrectly. This book focuses on the "this" structure in JavaScript, which should be a convenience for developers, but often acts differently than they expect because of how it relates to scope. That leads into an examination of JavaScript's prototype inheritance system, which uses the same terminology as inheritance in object-oriented languages, but in fact behaves entirely differently.