在Vue指令文档中,除了元素和绑定之外,没有太多关于如何将指令与外部数据一起使用的解释。
我需要访问组件的this
,但是,我无法将其作为值传递,因为我还需要传递当前的数组。如果我将其作为arg
传递,则将其强制为字符串。
这是我的代码:
directives: {
gridView: {
update(el, binding) {
if(binding.value.length % 2 === 0) {
this.gamesSwiper.swiperOption.slidesPerColumn = 2; //this is undefined as there is no access to the outside component
}
}
}
}
<!--games is an array, which is passed down to the swiper component-->
<swiper :options="swiperOption" ref="gamesSwiper" v-gridView="games">
<swiper-slide class="game-frame" v-for="game in games">
<img class="game-icon" :src="'/static/assets/' + `${game}` + '.jpg'">
</swiper-slide>
</swiper>
有人知道在指令中到达组件this
的好方法吗?