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js处理对象

language: [
    {
      value: 'EN',
      label: '英文'
    }, {
      value: 'CN',
      label: '中文'
    }
  ]
  用a 和language去匹配
  如果 a= 'EN'  那就返回英文
  如果a= 'EN,CN' 那就返回英文,中文
  如果a= 'CN' 那就返回中文

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const getLanguageLabels = value => language.reduce((labels, next) => value.includes(next.value) ? labels.concat(next.label) : labels, []).join(',');

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