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Introduction to the Browser Object Model JavaScript consists of three main components: ECMAScript (the core language), DOM (Document Object Model), and BOM (Browser Object Model). While ECMAScript defines the syntax and core features, the BOM provides JavaScript with the ability to interact with the browser itself. The Browser Object Model allo ...

MessageChannel is a browser API that creates a new bidirectional communication channel with two connected ports. Messages sent via this API are processed as macro tasks in the browser's event loop. Every MessageChannel instance exposes two read-only MessagePort properties: port1: The first end of the channel, bound too the originating executio ...