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There are lots of JavaScript libraries. Why people create them, if it's not for money? If it is, how do they make money on something anybody can copy, since the code source is available publicly?

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Recommended reading: The Magic Cauldron –  Péter Török Mar 27 '12 at 7:38
    
@PéterTörök thank you Peter –  OammieR Mar 27 '12 at 8:11
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up vote 5 down vote accepted

JavaScript open source libraries are not different from other open source projects. Linux is available publicly and (often) for free, and still people contribute to it.

There are different ways of making money from an open source project. One of them is to provide paid professional support.

Of course, people don't contribute to open source JavaScript libraries just for money. Doing something great for the community is a strong motivation, for example. Learning how to work in a team is another strong reason to contribute to an open source project.

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