Question

我正在尝试生成<select>子类别下拉列表以创建过滤器。生成列表时，我得到重复项和字符串。如何拆分字符串然后删除重复项？

示例 - 这是我目前获得的

<select data-filter="" class="form-control" name="subClassifications">
    <option value="all">Select sub-classification</option>
      <option value="Audit">Audit</option>
      <option value="Assurance,Accounting,Audit">Assurance,Accounting,Audit</option>
</select>

路径：helper.js

subClassificationsFilter() {
  let subClassifications = ProfessionalOverview.find( {}, { fields: { subclassification: 1 } } );

  if ( subClassifications ) {
    return _.uniq( subClassifications.map( ( subClassification ) => {
      return subClassification.subclassification;
    }), true );
  }
},

Answer 1

创建列表以删除重复项

unorderedList = Object.keys(myObject).map(function(key){
    return {label: key, value: myObject[key]}
});

然后订购无序列表

const orderedList = {};
Object.keys(unorderedList).sort().forEach(function(key) {
    orderedList[key] = unorderedList[key];
});

使用有序列表创建下拉列表。

Answer 2

    subClassificationsFilter() {
        let subClassifications = ProfessionalOverview.find( {}, { fields: { subclassification: 1 } } ).fetch();
        let subClassification = _.map(subClassifications, function(obj) {
            return obj.subclassification;
        });

        let groupSubClassification = _.flatten(subClassification);

        return _.uniq(groupSubClassification).sort();
  }

从下拉列表中删除重复项

2 个答案: