如何限制’v-for’中元素的迭代

我正在构建一个小的应用程序在 Vuejs 2.0我有大约15个迭代元素,我想限制的 v-for只有5个元素,可以有更多的按钮来显示整个列表。有可能吗?

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You can try this code

<div v-if="showLess">
<div v-for="value in array.slice(0, 5)"></div>
</div>
<div v-else>
<div v-for="value in array"></div>
</div>
<button @click="showLess = false"></button>

You will only have 5 elements in the new array.

Update: Tiny change that makes this solution work with both arrays and objects

<div v-if="showLess">
<div v-for="(value,index) in object">
<template v-if="index <= 5"></template>
</div>
</div>
<div v-else>
<div v-for="value in object"></div>
</div>
<button @click="showLess = false"></button>

you can try this solution to...

<div  class="body-table  div-table" v-for="(item,index) in items"  :key="item.id" v-if="items && items.length > 0 && index <= limitationList">....

and set your limit in data

data() {
return {
limitationList:5
};
},

and set a function in you btn

  <button  @click="updateLimitation(limitationList)">
show \{\{limitationList == 5 ? 'more' : 'less'}}
</button>

and this your methods

updateLimitation(limitationList){
if (this.limitationList == this.items.length) {
this.limitationList = 5
}else{
this.limitationList = this.items.length
}
}

i hope useful for you...

Am I too late? You can solve this using computed properties:

<div v-for="value in computedObj">\{\{value}}</div>
<button @click="limit = null">Show more</button>

Then in data:

data(){
return {
object:[], // your original data
limit: 5 // or any number you wish to limit to
}
}

And finally in your computed properties:

computed:{
computedObj(){
return this.limit ? this.object.slice(0,this.limit) : this.object
}
}

When your click the button, the limit is cleared and the whole data is shown/returned

for resolve that problem u can computed limit list in computed method

like this

<div  class="body-table  div-table" v-for="(item,index) in filterItems"  :key="item.id">
....


<script>


export default {
data() {
return {
items: [],
limitationList:5
};
},
computed: {
filterItems () {
return this.items && this.items.length > 0 && (this.items.length - 1) <= this.limitationList  // or any condition u want
}
}
}


</script>

I hope useful.

This is my solution, check that if your rendering list you must hide the root section in the iteration <li>.

 <ul role="list">
<li v-for="(actor,index) in this.cast" :key="actor.id" :class="{'your-hidden-class': index>5}">
<div v-if="index <= 5">
<img v-if="actor.profile_path" :src="'https://image.tmdb.org/t/p/original' + actor.profile_path" alt="" />
<img v-else src="/images/image-not-found.png" alt="" />
<div>
<div>
<h3>\{\{ actor.original_name }}</h3>
<p>\{\{ actor.character }}</p>
</div>
</div>
</div>
</li>
</ul>

This is what computed was made for (I'm using script setup):

const paginatedList = computed(() => {
// for arrays
return yourArray.slice(0,5)


// for objects/proxies such as reactive, refs, other computed
// return yourObject.value.slice(0,5)
})

render it in a v-for loop:

<div v-for="item in paginatedList">
<p>\{\{ item }}</p>
</div