handler.set() - JavaScript | MDN
The handler.set() method is a trap for the [[Set]] object internal method, which is used by operations such as using property accessors to set a property's value.| developer.mozilla.org
The TypeError object represents an error when an operation could not be performed, typically (but not exclusively) when a value is not of the expected type.| developer.mozilla.org
Boolean values can be one of two values: true or false, representing the truth value of a logical proposition.| developer.mozilla.org
We are an open community of developers, technical writers, and learners building resources for a better Web, regardless of brand, browser, or platform. Anyone can contribute, and each person who does contribute has an impact on millions of readers. Learn how to contribute and drive innovation on the Open Web.| developer.mozilla.org
The handler.set() method is a trap for the [[Set]] object internal method, which is used by operations such as using property accessors to set a property's value.| developer.mozilla.org
The Proxy object enables you to create a proxy for another object, which can intercept and redefine fundamental operations for that object.| MDN Web Docs
