WeChat Mini Programs selected, if the click is not the selected 7, more than 7 prompts more than 7, if you click on the selected 7 to reduce the selected, selected to change the color

problem description

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

related codes

/ / Please paste the code text below (do not replace the code with pictures) 

<view class="habit_taglist">
        <view class="{{item.active?"active-tag":""}} habit_tag fl" wx:for="{{tags}}"  bindtap="tagTap" data-key="{{index}}" wx:key="index"   data-test="4">{{item.habitName}}</view>
</view>

tagTap: function (e) {
    var index = e.currentTarget.dataset.key;
    this.data.tags[index].active = !this.data.tags[index].active
    this.setData({
      tags: this.data.tags
    });
    console.log(this.data.tags)
 },

what result do you expect? What is the error message actually seen?


ask for advice

WeChat Mini Programs
Dec.14,2021

resolved.
tagTap: 

function (e) {
    this.setData({
      habittags:[]
    })
    var index = e.currentTarget.dataset.key;
    for (var i = 0; i < this.data.tags.length; iPP) {
      if (this.data.tags[i].active) {
        this.data.habittags.push(
          {
            habitId: this.data.tags[i].zid,
            babyId: this.data.babyId,
            groupId: getApp().globalData.groupId,
            habitDay: this.data.tags[i].habitDay
          })
      }
    }
    this.setData({
      habittags: this.data.habittags
    })
    if (this.data.habittags.length>=7){
      if (this.data.tags[index].active){
        this.data.tags[index].active = !this.data.tags[index].active
        this.setData({
          tags: this.data.tags
        });
      }else{
        var test = e.target.dataset.test;
        if (test == 4) {
          feedbackApi.showToast({
            title: '7',
            mask: false
          })
        }
      }
    }else{
      this.data.tags[index].active = !this.data.tags[index].active
      this.setData({
        tags: this.data.tags
      });
    }

},

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