Modern JavaScript from the Beginning - Second Edition - Under the Hood: Thread of Execution

The video tutorial explains the core nature of JavaScript as a synchronous and single-threaded language. It delves into the execution context and thread of execution, highlighting that JavaScript executes code line by line. Although JavaScript has asynchronous capabilities through web APIs, it is not inherently asynchronous. The video also touches on the call stack and memory heap, and introduces the concept of service workers. Finally, it sets the stage for exploring asynchronous JavaScript in future lessons.

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