js-custom-operators

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> 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:

``js
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.

![js-custom-operators](#)

:question: 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. :bug:
3. For direct and quick help, you can use Codementor. :rocket:

:yum: How to contribute


- Starring and sharing the projects you like :rocket:
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Thanks! :heart:

:cake: Thanks

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

:scroll: License

[MIT][license] © [Ionică Bizău][website]

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[docs]: /DOCUMENTATION.md
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