Documentation for mixins?

[abierbaum]

Is there documentation for how to use mixins? I have a situation where I think I want to use a mixin, but I can't find any documentation that tells me exactly how to do it or how it functions.

[jweber]

Here's a quick example (based on my reading of Sencha's code; I agree that we could use more documentation here):

Ext.define('MyMainClass', {
	// the benefit is that you can add to your class with one
	// or more mixins, rather than by extending another class
	extend: 'MyParentClass',
	mixins: {
		myMixinIdentifier: 'MyMixinClass'
	},
	constructor: function(config) {
		this.callParent(arguments);
		// make sure you call this if your mixin has a constructor
		this.mixins.myMixinIdentifier.constructor.call(this);
	}
});

Ext.define('MyMixinClass', {
	extend: 'Ext.mixin.Mixin',
	mixinConfig: {
		id: 'myMixinIdentifier'
	},
	config: {
		// configs defined here will be added to MyMainClass instances
	}
	// methods defined here will be added to MyMainClass instances
});

[abierbaum]

Thanks for the quick reply. This is exactly what I wanted to see.

[Brooklyn Ji]

it is also helpful for me, thanks.