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2018年7月5日木曜日

オブジェクトの中から条件に一致する要素を抜き出す(filter)


このようなオブジェクトがあって

var obj = [
  {"en": "Aries", "ja": "おひつじ座"},
  {"en": "Taurus", "ja": "おうし座"},
  {"en": "Gemini", "ja": "ふたご座"},
  {"en": "Cancer", "ja": "かに座"},
  {"en": "Leo", "ja": "しし座"},
  {"en": "Virgo", "ja": "おとめ座"},
  {"en": "Libra", "ja": "てんびん座"},
  ...
}

en が Libra のものを抽出したい



コード.gs
var obj = [
  {"en": "Aries", "ja": "おひつじ座"},
  {"en": "Taurus", "ja": "おうし座"},
  {"en": "Gemini", "ja": "ふたご座"},
  {"en": "Cancer", "ja": "かに座"},
  {"en": "Leo", "ja": "しし座"},
  {"en": "Virgo", "ja": "おとめ座"},
  {"en": "Libra", "ja": "てんびん座"},
  {"en": "Scorpius", "ja": "さそり座"},
  {"en": "Sagittarius", "ja": "いて座"},
  {"en": "Capriconus", "ja": "やぎ座"},
  {"en": "Aquarius", "ja": "みずがめ座"},
  {"en": "Pisces", "ja": "うお座"}
]

function filter_obj() {
  var filtered = obj.filter(judge);
  var result = get_result(filtered);
  Logger.log(result);
}

function judge(items) {
  if(items["en"] === "Libra"){
    return true;
  }else{
    return false;
  }
}

function get_result(filtered) {
  var result = [];
  for (var i = 0; i < filtered.length; i++) {
    result.push([filtered[i]["en"], filtered[i]["ja"]]);
  }
  return result;
}



filter_obj()の実行結果


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