Create your own operators in JavaScript

During the Math classes we learned how to define new operators. For example:

This defines ∘ law. For any real numbers x and y, x ∘ y is x + 2y. e.g: 2 ∘ 2 = 2 + 4 = 6.

This projects finally bring this feature in the JavaScript world! :-) Using esprima - which takes JS code and generates the syntax tree for it - and escodegen - which does the other direction, generating JS code from the syntax tree esprima spits - we can create new JavaScript operators.

Having two arrays:

var x = [1, 2, 3, 4, 5]
  , y = [3, 5, 6, 1]
  ;

we want to find the intersection of them (that is [1, 3, 5]).

We can easily create a function function foo (x, y) { ... }, but why not create an operator instead?

Then x ⋂ y will return the same thing. :-)

You can try this application online clicking here.

Have an idea? Found a bug? See how to contribute.

I open-source almost everything I can, and I try to reply everyone needing help using these projects. Obviously, this takes time. You can integrate and use these projects in your applications for free! You can even change the source code and redistribute (even resell it).

However, if you get some profit from this or just want to encourage me to continue creating stuff, there are few ways you can do it:

• Starring and sharing the projects you like 🚀

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• —Set up a recurring monthly donation and you will get interesting news about what I'm doing (things that I don't share with everyone).

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Thanks! ❤️

• @benjamingr posted this great answer to my question on StackOverflow
• esprima
• escodegen

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