{"id":6760,"date":"2019-07-15T12:37:00","date_gmt":"2019-07-15T12:37:00","guid":{"rendered":"https:\/\/www.intexsoft.com\/?post_type=blog&p=6760"},"modified":"2022-07-19T12:43:21","modified_gmt":"2022-07-19T12:43:21","slug":"node-js-vs-java-why-compare","status":"publish","type":"blog","link":"https:\/\/intexsoft.com\/blog\/node-js-vs-java-why-compare\/","title":{"rendered":"Node.js vs Java: Why Compare?"},"content":{"rendered":"
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July 15, 2019 \u2022 by \t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tAlexandra &\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tAndrew\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

Node.js vs Java: Why Compare?<\/h1>\n\t\t\t\t\t\t\t\t\t\t
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Recently, my colleagues and I discussed the popularity of a couple of technologies – in particular, Java and node.js. After a brief Internet surfing session, it turned out that these technologies are used by many information giants to develop and maintain their platforms. Below, I will mention only a few of them.<\/span><\/p>\n

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Companies using Java<\/a>:<\/span><\/p>\n

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 <\/p>\n\"\"<\/a>\n

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Companies using node.js:<\/i><\/span><\/p>\n

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 <\/p>\n\"\"<\/a>\n

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One more interesting fact is that according to\u00a0<\/span>indeed.com<\/a>\u00a0(06.28.2019) Java developers (30272 jobs) and node.js developers (7401 jobs) are quite in demand.<\/span><\/p>\n

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Why they should be compared<\/span><\/h2>\n

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Java is a language, while node.js can be called an ecosystem built on the basis of JS, and, above all, on the basis of Google\u2019s\u00a0<\/span>V8<\/a>\u00a0engine. Both are mostly used for back-end development<\/a>.<\/span><\/p>\n

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However, when we talk about Java, we are talking not only about the language but about the Java Virtual Machine (JVM), as well as the entire ecosystem and infrastructure built around this machine. That\u2019s the first reason why we can compare them.<\/span><\/p>\n

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As a result,\u00a0in both cases, we have the execution environment. In the case of Java<\/a>, it\u2019s a virtual machine. In the case of node.js, this is the V8 engine that presents on most operating systems, such as Windows, Linux, MacOS, and those lesser known. Developers can write code using the same language, and this will work in more or less the same way on different operating systems due to the fact that there is a runtime environment. The execution environment influences how it interacts with the OS. In addition, they can be compared because they are used to\u00a0solve a similar range of tasks.<\/span><\/p>\n

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V8 and JVM<\/span><\/h2>\n

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When a JS code enters the V8, it is compiled into a byte code due to the<\/span>\u00a0just in time <\/a>(JIT) compilation that is used in the virtual machine, therefore the JS code runs faster.<\/span><\/p>\n

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Bytecode is an intermediate, high-level language, so in a JVM, they write not only in Java but also in Scala and Kotlin.<\/span><\/p>\n

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There are prerequisites that in the near future for V8 it will be possible to use not only JS but also TypeScript or others. At the moment, a transpiling of these languages \u200b\u200bin JS is going on. The perspective for the technology will see that, they will probably be supported out of the box, and everything will work much faster.<\/span><\/p>\n

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Now, when the continuous development of V8 takes place, the emergence of new node.js versions is associated with the appearance of a new version of the V8 engine. They are directly interrelated.<\/span><\/p>\n

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Pros and cons of node.js<\/span><\/h2>\n

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Node.js was created by<\/span>\u00a0Ryan Dahl<\/a>\u00a0in 2009.<\/span><\/p>\n

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The node.js itself includes several key components:<\/span><\/p>\n

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