JavaScript is a synchronous, single-threaded language. It can only execute one command at a time and in a specific order. The browser creates a global execution context with two components, namely memory and code components. When JavaScript runs functions, it will create an execution context inside the global executioncontext.

•1m read time•From javascript.plainenglish.io
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How JavaScript Works: A Visual Guide🔥 🤖Execution Context
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