@tarojs/components/dist-h5/vue/mixins/refs.js

Taro 组件库。

import _typeof from "@babel/runtime/helpers/typeof";
export var refs = {
  mounted: function mounted() {
    if (this.$parent && _typeof(this.$parent.$refs) === 'object' && Object.keys(this.$parent.$refs).length) {
      var _refs = this.$parent.$refs;

      if (this._refCacheKey) {
        _refs[this._refCacheKey] = this.$el;
      } else {
        for (var key in _refs) {
          var ref = _refs[key];

          if (ref === this) {
            this._refCacheKey = key;
            _refs[key] = this.$el;
            break;
          } else if (Array.isArray(ref)) {
            var index = ref.indexOf(this);

            if (index > -1) {
              ref[index] = this.$el;
              break;
            }
          }
        }
      }
    }
  },
  beforeDestroy: function beforeDestroy() {
    if (this.$parent && _typeof(this.$parent.$refs) === 'object' && Object.keys(this.$parent.$refs).length) {
      var _refs2 = this.$parent.$refs;

      if (this._refCacheKey) {
        _refs2[this._refCacheKey] = this;
      } else {
        for (var key in _refs2) {
          if (Array.isArray(_refs2[key])) {
            var index = _refs2[key].indexOf(this.$el);

            if (index > -1) {
              _refs2[key][index] = this;
              break;
            }
          }
        }
      }
    }
  }
};