1.v-for is used to judge vmurif. the condition of judgment comes from the value
2 in v-for. The code is as follows:
<div v-for="item in items">
<div v-if="{{item.num}}>0">
abc
</div>
<div v-else>
efg
</div>
</div>
3. In this way, vue made a mistake and humbly asked for advice. Thank you very much.
Hello, landlord! There's something wrong with your writing. Try the following,
{{item}}</li>
</ul>
computed: {
filterNum(){
const data = [
{ num:1, },
{ num:2, },
{ num:3, },
{ num:-1, },
{ num:-2, },
]
return data.map(item => item.num>0 ? 'abc':'efg')
},
},requirement description: the tree component of element-ui is used in the project, the content of each node needs to be customized, and the rendering function is used: renderContent(h, { node, data, store }) { if(node.data.templateItem){ re...