js-custom-operators

Create your own operators in JavaScript

Introduction

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

(ℝ, ∘), x ∘ y = x + 2y

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

Custom operators in JavaScript?

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.

Example

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. :-)

Live demo

You can try this application online clicking here.

❓ Get Help

There are few ways to get help:

1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
2. For bug reports and feature requests, open issues. 🐛
3. For direct and quick help, you can use Codementor. 🚀

😋 How to contribute

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

💖 Support my projects

I open-source almost everything I can, and I try to reply to 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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Thanks! ❤️

🍰 Thanks

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

📜 License

MIT © Ionică Bizău