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You're reading from  Modern Frontend Development with Node.js

Product typeBook
Published inNov 2022
Reading LevelExpert
PublisherPackt
ISBN-139781804618295
Edition1st Edition
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Florian Rappl
Florian Rappl
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Florian Rappl

Florian Rappl is a solution architect working on distributed web applications for digital transformation and IoT projects. His main interest lies in the implementation of micro frontends and their impact on teams and business models. As the lead architect he helped to create outstanding web applications for many industry leading companies. He regularly gives lectures on software design patterns and web development. Florian won multiple prizes for his work over the years and is recognized as a Microsoft MVP for development technologies. He started his career in software engineering before studying physics and helping to build an energy-efficient supercomputer. Florian currently lives in Munich, Germany, with his wife and two daughters.
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Using the ESM standard

CommonJS has been a good solution for Node.js, but not a desirable solution for JavaScript as a language. For instance, in the browser, CommonJS does not work. Doing synchronous imports on URLs is just not possible. The module resolution of CommonJS was also way too flexible in terms of adding extensions and trying directories.

To standardize modules in JavaScript, the ECMAScript Module (ESM) standard was established. It is capable of defining modules that run in the browser, as well as Node.js. Furthermore, instead of using an arbitrary function such as require, the whole module system relies on language constructs using reserved words. This way, the module system can be brought over to the browser, too.

The ECMAScript standard specified two keywords for this:

  • import: Used to import functionality from other modules
  • export: Used to declare the functionality that can be imported into other modules

The import keyword must appear at the...

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Modern Frontend Development with Node.js
Published in: Nov 2022Publisher: PacktISBN-13: 9781804618295

Author (1)

author image
Florian Rappl

Florian Rappl is a solution architect working on distributed web applications for digital transformation and IoT projects. His main interest lies in the implementation of micro frontends and their impact on teams and business models. As the lead architect he helped to create outstanding web applications for many industry leading companies. He regularly gives lectures on software design patterns and web development. Florian won multiple prizes for his work over the years and is recognized as a Microsoft MVP for development technologies. He started his career in software engineering before studying physics and helping to build an energy-efficient supercomputer. Florian currently lives in Munich, Germany, with his wife and two daughters.
Read more about Florian Rappl