vue-mutation-observer

vue-mutation-observer

VueJS directive to observe changes in DOM use MutationObserver API

Install

npm install vue-mutation-observer

or

yarn add vue-mutation-observer

CommonJS

You can use any build tool which supports commonjs:

// register globally
const observer =  require('vue-mutation-observer');
Vue.use(observer)

// or for a single instance
const { observer } = require('vue-mutation-observer');
new Vue({
  directives: { observer }
})

Or in ES2015:

// register globally
import observer from 'vue-mutation-observer'
Vue.use(observer)

// or for a single instance
import { observer } from 'vue-mutation-observer'
new Vue({
  directives: { observer }
})

Usage

Use v-observer directive to observe DOM mutations in node and it's children.

<div v-observer:subtree.childList="handler">
  // some content here
</div>

import { observer } from 'vue-mutation-observer'

export default {
  directives: { observer },
  methods: {
    handler (mutations) { console.log(mutations) }
  }
}

Arguments

Argument	Description
subtree	Extend monitoring to the entire subtree of node. All of the other properties are then extended to all of the nodes in the subtree instead of applying solely to the target node.

Modifiers

Modifier	Description
characterData	Add properties characterData and characterDataOldValue to observer configuration
attributes	Add properties attributes and attributeOldValue to observer configuration
childList	Add property childList to observer configuration

If no modifiers is define - all properties in config will be defines as true.
MutationObserver configuration

Value

Value may be a function, which handle your mutation or an object with two properties: callback and config.