Simple object to bidirectionally track its attachments (links,connections) to other attachable objects

You can

obj1.attachTo(obj2)

And later

console.log( obj2.isAttachedTo(obj1) );
// true

If you have different needs regarding the functionality, please add a feature request.

npm install --save attachable

// var attachable=require('attachable');
var attachable=require('./index.js');
var obj1={}; attachable(obj1);
var obj2={}; attachable(obj2);

obj1.attachTo(obj2);

obj2.isAttachedTo(obj1);
// true
obj1.isAttachedTo(obj2);
// true

obj2.detachFrom(obj1)
obj2.isAttachedTo(obj1);
// false
obj1.isAttachedTo(obj2);
// false

attachTo(attachable)

Attach to specific attachable object (and also attach that object to this one)

detachFrom(attachable)

Detach from specific attachable object (and also attach that object from this one)

detachAll() 

Detach object from all currently attached attachable objects

boolean hasAttached()

Allows to check if this object has other attachable objects attached to it (it is attached to some other attachable objects)

boolean isAttachedTo(attachable)

Allows to check if the object attached to another attachable object

Alexander

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MIT