The compilation process starts with Tokenizing. The three steps are Tokenizing, Parsing and Code-Generation which we will discuss in this article. Let’s dive deeper into 3 steps that JavaScript engine performs before the code execution process starts. Roughly these processes we can call “compilation.” The JavaScript engine performs many of the same steps, albeit in more sophisticated ways than we may commonly be aware, of any traditional language-compiler. It is not compiled well in advance, as are many traditionally-compiled languages, nor are the results of compilation portable among various distributed systems. It may be surprising, depending on your level of interaction with various languages, but in fact, JavaScript falls under the category of compiled languages.
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