render the page according to the one-dimensional array
render the page according to the one-dimensional array
// common.js
export const join = {
bind (el, binding, vnode) {
let value = binding.value
if (Object.prototype.toString.call([]) !== Object.prototype.toString.call(value)) {
throw new Error('')
}
value.forEach((item, index) => {
// -
if (index + 1 === value.length) {
el.innerHTML += `<a href="${item.url || 'javascript：void(0)'}">${item.name}</a>`
} else {
el.innerHTML += `<a href="${item.url || 'javascript：void(0)'}">${item.name} - </a>`
}
})
}
}
// xxx.vue
<template>
<div v-join="joinData"></div>
</template>
<script>
import { join } from "@/directives/common";
export default {
name: "app",
directives: {
join
},
data(){
return{
//
joinData: [
{ name: "a", url: "http://www.baidu.com" },
{ name: "b", url: "http://www.jd.com" },
{ name: "c", url: "" } //
]
}
}
}
</script>
this way feels reusable. I don't know if you can use this data format.
this effect?
<div>
<a v-for="item in arr"
:key="item"
:href="item">
{{ item }} -
</a>
</div><a v-for:"item in arr" :key="item.index" :bind></a> like this?
not just one layer v-for
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