VueJs Flash Message Component within Vuex

Vuex Flash

Flash message component for Vue.js within Vuex.

//...
someMethod(){
//..
this.$store.commit('FLASH/SET_FLASH', { message: 'some message', variant: 'success' });
}
}

In **`mapMutations`** way:

```javascript

methods: {
  //...
  someMethod(){
    //..
    this.flash({ message: 'some message', variant: 'success' });
  },

  ...mapMutations({
    flash: 'FLASH/SET_FLASH'
  })
}

Note that the default mutation type is FLASH/SET_FLASH. You can configure it in options.

Display flash

//in somepage component

<template>
  <flash-message variant="success"></flash-message>
  //......
</template>

Multiple flash

this.flash({ message: 'some success message', variant: 'success' });
this.flash({ message: 'some warning message', variant: 'warning' });
this.flash({ message: 'some danger message', variant: 'danger' });
this.$router.push('/somepage'); //redirect to /somepage

//in somepage
<flash-message variant="success"></flash-message>
<flash-message variant="danger"></flash-message>
<flash-message variant="warning"></flash-message>

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