Vue + what framework does this combine to make me feel very uncomfortable?

problem description

cannot be defined: a dynamic array + multiple local variables

the environmental background of the problems and what methods you have tried

have no choice but to define the global variable 0.0

related codes

Vue.component ("weeklist", {

)
props : {
    datas : Array
},
data () {
    document.cookie="tab=1";
    $.ajax({
        url : "jsonActionRed",
        type : "GET", //GET
        async : false, //false,
        //timeout : 5000, //
        dataType : "json", //:
        success : function(data) {
            this.items = data.data;
        },
        error : function(data) {
            alert("!!");
        }
    })
    return {
        items
    }
},
methods : {
    timeFormate:function(time) {
        var timestamp=new Date().getTime();
      return time>timestamp;
    },
    linkTo : function(url, param) {
        this.$router.push({
            path : url,
            query : {
                name : param
            }
        });
    },
    toDetails : function(contentVOName) {
        this.linkTo("/copyintroduce/" + contentVOName, contentVOName);
    },
    
},
template : `<div class="paihang-box">
    <slot v-if="items.length>0">
      <ul class="paihang-forefront" v-if="items.length>5">
      <!--5-->
        <li v-for="(item, index) in items" :key="index" v-if="items.length>5 && index>2&&timeFormate(item.contentList[0].powerLostTime)||item.wincount!==0" @click="toDetails(item.contentVOName)" :data-contenVOName="item.contentVOName">
        </li>

        <!--5-->
        <li v-for="(item, index) in items" :key="index" v-if="items.length<=5" v-bind:class="{"not-border": index==0}" @click="toDetails(item.contentVOName)" :data-contenVOName="item.contentVOName">
        </li>
      </ul>
    </slot>
    <div class="notdata" v-if="items.length==0">,~</div>
 </div>`

})

what result do you expect?

define a dynamic array,
multiple local variables
Vue.prototype.flags=false;
Vue.prototype.position= {x: 0, y: 0};
Vue.prototype.nx=", ny=", dx=", dy=", xPum=", yPum="";
add this to the data () method and cannot be a global variable

Nov.24,2021

when you look at your code, it seems that when you want to load a component, get the data and assign it to items

.
data(){
    return {
        items: null
    }
},
created () {
    var _this = this
    document.cookie="tab=1";
    $.ajax({
        url : 'jsonActionRed',
        type : 'GET', //GET
        async : false, //false,
        //timeout : 5000, //
        dataType : 'json', //:
        success : function(data) {
            // thisajax
            _this.items = data.data;
        },
        error : function(data) {
            alert("!!");
        }
    })
}
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