Callbacks Object

As second argument you can pass object with two properties: "mounted" and "destroyed".

Property	Type	Description
mounted	Function	Will be invoked, when flashMessage appears
destroyed	Function	Will be invoked, when flashMessage gone

Example:

<p>{{ text }}</p>
<button @click="clickHandler" type="button" name="button">Show Text!</button>

For example you can add some sound which will be played when message appears

    methods: {
        showText() {
            this.text = 'Hello from callback!'
        },
        clearText() {
            this.text = 'Bye... 1, ..2, ..3';
            let sound = new Audio('audio source'); // add sound source
            sound.play(); // and play it
            setTimeout( () => this.text = '', 3000);
        },
        clickHandler() {
            this.flashMessage.info({
                title: 'Ooooooops!',
                message: 'Do you see this text and hear this sound? Wtf?'
            },
            {
                mounted: showText,
                destroyed: clearText
            })
        }
    }