src/components/split/trigger.vue

<template>
    <div :class="classes">
        <div :class="barConClasses">
            <i :class="`${prefix}-bar`" v-once v-for="i in 8" :key="`trigger-${i}`"></i>
        </div>
    </div>
</template>
<script>
    export default {
        name: 'Trigger',
        props: {
            mode: String
        },
        data () {
            return {
                prefix: 'ivu-split-trigger',
                initOffset: 0
            };
        },
        computed: {
            isVertical () {
                return this.mode === 'vertical';
            },
            classes () {
                return [
                    this.prefix,
                    this.isVertical ? `${this.prefix}-vertical` : `${this.prefix}-horizontal`
                ];
            },
            barConClasses () {
                return [
                    `${this.prefix}-bar-con`,
                    this.isVertical ? 'vertical' : 'horizontal'
                ];
            }
        }
    };
</script>