Vue

by goldorak

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.10/vue.js"></script>
<div id="app">
  <div class="item" :style="{ ...styleComputed }">
    item
  </div>
  
  <div class="item" :style="{ ...styleMethod('red') }">
    item
  </div>
</div>

Vue

new Vue({
  el: "#app",
  computed: {
		styleComputed: function(){
    	return { 'background-color': 'blue' };
    }
  },
  methods: {
  	styleMethod: function(val){
    	return { 'background-color': val };
    }
  }
})