uupaa.messagepassing.js
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Implementation of lightweight MessagePassing model.
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# MessagePassing.js [](https://travis-ci.org/uupaa/MessagePassing.js)
[](https://nodei.co/npm/uupaa.messagepassing.js/)
Implementation of lightweight MessagePassing model.
This module made of [WebModule](https://github.com/uupaa/WebModule).
## Documentation
- [Spec](https://github.com/uupaa/MessagePassing.js/wiki/)
- [API Spec](https://github.com/uupaa/MessagePassing.js/wiki/MessagePassing)
## Browser, NW.js and Electron
```js
<script src="<module-dir>/lib/WebModule.js"></script>
<script src="<module-dir>/lib/MessagePassing.js"></script>
<script>
// ## inbox method
function _inbox(selector, arg1, arg2) {
switch (selector) {
case "ping": return "pong" + arg1;
}
return selector.toUpperCase();
}
// ## SubscriberClass
function A() {};
A.prototype.inbox = _inbox;
// ## SubscriberObject
var B = { inbox: _inbox };
// ## init MessagePassing
var mp = new MessagePassing();
var a = new A();
var b = B;
// ## regsiter subscriber and register interrested selector
mp.register(a, "Hello"). // A is interrested in "Hello"
register(b, ["Hello", "ping"]); // B is interrested in "Hello" and "ping"
// ## call A.inbox("Hello") and B.inbox("Hello")
var result1 = mp.to(a, b).send("Hello");
console.log( result1[0], result1[1] ); // -> "HELLO", "HELLO"
// ## call B.inbox("ping", 123)
mp.to(a, b).post("ping", 123, function(result2) {
console.log(result2[0]); // -> "pong123";
console.log(result2[ mp.id(b) ]); // -> "pong123";
});
// ## destruct
mp.unregisterAll();
</script>
```
## WebWorkers
```js
importScripts("<module-dir>/lib/WebModule.js");
importScripts("<module-dir>/lib/MessagePassing.js");
```
## Node.js
```js
require("<module-dir>/lib/WebModule.js");
require("<module-dir>/lib/MessagePassing.js");
```