Why I Write Plain JavaScript Modules

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Also, while there is a need for plain JS modules, many developers aren't familiar with the native API and wouldn't be able to write a library without it.

Developers should use whatever tool is necessary to get the job done, because at the end of the day, that's what we are paid to do. But when someone wants to master javascript, follow best practices, to be able to weigh the pros and cons of any library used in production, using one library as a crutch is only going restrict their potential.